diff --git a/.github/license.svg b/.github/license.svg
index 4ab6d9a..67cfb13 100644
--- a/.github/license.svg
+++ b/.github/license.svg
@@ -1,217 +1,84 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:xlink="http://www.w3.org/1999/xlink"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="83.946869"
-   height="20.137625"
-   version="1.1"
-   id="svg28"
-   sodipodi:docname="license.svg"
-   inkscape:version="0.92.4 5da689c313, 2019-01-14">
-  <metadata
-     id="metadata34">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title></dc:title>
-        <cc:license
-           rdf:resource="MIT (c) L3D &lt;l3d@c3woc.de&gt;" />
-        <dc:creator>
-          <cc:Agent>
-            <dc:title>3D &lt;l3d@c3woc.de&gt;</dc:title>
-          </cc:Agent>
-        </dc:creator>
-        <dc:rights>
-          <cc:Agent>
-            <dc:title>MIT License</dc:title>
-          </cc:Agent>
-        </dc:rights>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <defs
-     id="defs32">
-    <linearGradient
-       inkscape:collect="always"
-       xlink:href="#b"
-       id="linearGradient4625"
-       gradientUnits="userSpaceOnUse"
-       gradientTransform="matrix(4.9067096,0,0,0.44280744,1.0963297e-6,-1e-6)"
-       x1="0"
-       y1="-0.28392482"
-       x2="0"
-       y2="45.166359" />
-    <linearGradient
-       inkscape:collect="always"
-       xlink:href="#b"
-       id="linearGradient837"
-       gradientUnits="userSpaceOnUse"
-       gradientTransform="matrix(4.9067096,0,0,0.44280744,1.0963297e-6,-1e-6)"
-       x1="0"
-       y1="-0.28392482"
-       x2="0"
-       y2="45.166359" />
-    <linearGradient
-       inkscape:collect="always"
-       xlink:href="#b"
-       id="linearGradient839"
-       gradientUnits="userSpaceOnUse"
-       gradientTransform="matrix(4.9067096,0,0,0.44280744,1.0963297e-6,-1e-6)"
-       x1="0"
-       y1="-0.28392482"
-       x2="0"
-       y2="45.166359" />
-  </defs>
-  <sodipodi:namedview
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="1916"
-     inkscape:window-height="1152"
-     id="namedview30"
-     showgrid="false"
-     showguides="true"
-     inkscape:guide-bbox="true"
-     inkscape:zoom="7.5888761"
-     inkscape:cx="39.713668"
-     inkscape:cy="14.182162"
-     inkscape:window-x="2560"
-     inkscape:window-y="22"
-     inkscape:window-maximized="0"
-     inkscape:current-layer="svg28"
-     fit-margin-top="0"
-     fit-margin-left="0"
-     fit-margin-right="0"
-     fit-margin-bottom="0">
-    <sodipodi:guide
-       position="47.649406,5.8374226"
-       orientation="0,1"
-       id="guide4567"
-       inkscape:locked="false" />
-  </sodipodi:namedview>
-  <linearGradient
-     id="b"
-     x2="0"
-     y2="45.166359"
-     gradientTransform="scale(2.258318,0.44280744)"
-     x1="0"
-     y1="-0.28392482"
-     gradientUnits="userSpaceOnUse">
-    <stop
-       offset="0"
-       stop-color="#bbb"
-       stop-opacity=".1"
-       id="stop2" />
-    <stop
-       offset="1"
-       stop-opacity=".1"
-       id="stop4" />
-  </linearGradient>
-  <clipPath
-     id="a">
-    <rect
-       width="102"
-       height="20"
-       rx="3"
-       id="rect7"
-       x="0"
-       y="0"
-       style="fill:#ffffff" />
-  </clipPath>
-  <path
-     sodipodi:nodetypes="sccssss"
-     inkscape:connector-curvature="0"
-     id="path4637"
-     d="M 80.55806,0 H 48 v 20 h 32.55806 c 1.87153,0 3.378212,-1.506683 3.378212,-3.378212 V 3.3782117 C 83.936272,1.5066824 82.42959,0 80.55806,0 Z"
-     style="opacity:1;vector-effect:none;fill:#0055d4;fill-opacity:1;stroke:none;stroke-width:1.4740175;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:stroke fill markers" />
-  <path
-     style="opacity:1;vector-effect:none;fill:#4d4d4d;fill-opacity:1;stroke:none;stroke-width:1.4740175;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:stroke fill markers"
-     d="M 3.3782117,0 H 49.936272 V 20 H 3.3782117 C 1.5066824,20 0,18.493317 0,16.621788 V 3.3782117 C 0,1.5066824 1.5066824,0 3.3782117,0 Z"
-     id="rect4634"
-     inkscape:connector-curvature="0"
-     sodipodi:nodetypes="sccssss" />
-  <rect
-     ry="3.3782117"
-     y="0"
-     x="4.6019753e-15"
-     height="20.137625"
-     width="83.946869"
-     id="rect4641"
-     style="opacity:1;vector-effect:none;fill:url(#linearGradient837);fill-opacity:1;stroke:none;stroke-width:1.4740175;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:stroke fill markers" />
-  <rect
-     style="opacity:1;vector-effect:none;fill:url(#linearGradient839);fill-opacity:1;stroke:none;stroke-width:1.4740175;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:stroke fill markers"
-     id="rect833"
-     width="83.946869"
-     height="20.137625"
-     x="4.6019753e-15"
-     y="0"
-     ry="3.3782117" />
-  <rect
-     ry="3.3782117"
-     y="0"
-     x="4.6019753e-15"
-     height="20.137625"
-     width="83.946869"
-     id="rect835"
-     style="opacity:1;vector-effect:none;fill:url(#linearGradient4625);fill-opacity:1;stroke:none;stroke-width:1.4740175;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;paint-order:stroke fill markers" />
-  <g
-     id="g4591"
-     transform="translate(6.0000004,0.1778004)">
-    <text
-       id="text4551"
-       y="15.101547"
-       x="49.939278"
-       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:'DejaVu Sans', Verdana, Geneva, sans-serif;-inkscape-font-specification:'DejaVu Sans, Verdana, Geneva, sans-serif, Normal';font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;opacity:1;vector-effect:none;fill:#000000;fill-opacity:0.3;stroke:none;stroke-width:0.1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
-       xml:space="preserve"><tspan
-         style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:'DejaVu Sans', Verdana, Geneva, sans-serif;-inkscape-font-specification:'DejaVu Sans, Verdana, Geneva, sans-serif, Normal';font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;vector-effect:none;fill:#000000;fill-opacity:0.3;stroke:none;stroke-width:0.1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
-         y="15.101547"
-         x="49.939278"
-         id="tspan4549"
-         sodipodi:role="line">MIT</tspan></text>
-    <text
-       xml:space="preserve"
-       style="font-style:normal;font-weight:normal;font-size:40px;line-height:1.25;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;text-anchor:middle;fill:#ffffff;fill-opacity:1;stroke:none"
-       x="59.774261"
-       y="14.119328"
-       id="text4547"><tspan
-         sodipodi:role="line"
-         id="tspan4545"
-         x="59.774261"
-         y="14.119328"
-         style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:11px;font-family:'DejaVu Sans', Verdana, Geneva, sans-serif;-inkscape-font-specification:'DejaVu Sans, Verdana, Geneva, sans-serif, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:center;writing-mode:lr-tb;text-anchor:middle;fill:#ffffff">MIT</tspan></text>
+<svg width="123.95" height="20.138" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:xlink="http://www.w3.org/1999/xlink">
+ <metadata>
+  <rdf:RDF>
+   <cc:Work rdf:about="">
+    <dc:format>image/svg+xml</dc:format>
+    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+    <cc:license rdf:resource="MIT (c) L3D &lt;l3d@c3woc.de&gt;"/>
+    <dc:creator>
+     <cc:Agent>
+      <dc:title>3D &lt;l3d@c3woc.de&gt;</dc:title>
+     </cc:Agent>
+    </dc:creator>
+    <dc:rights>
+     <cc:Agent>
+      <dc:title>MIT License</dc:title>
+     </cc:Agent>
+    </dc:rights>
+   </cc:Work>
+  </rdf:RDF>
+ </metadata>
+ <defs>
+  <linearGradient id="l3d_a" x2="0" y1="-.28392" y2="45.166" gradientTransform="matrix(4.9067 0 0 .44281 1.0963e-6 -1e-6)" gradientUnits="userSpaceOnUse" xlink:href="#b"/>
+ </defs>
+ <linearGradient id="b" x2="0" y1="-.28392" y2="45.166" gradientTransform="scale(2.2583 .44281)" gradientUnits="userSpaceOnUse">
+  <stop stop-color="#bbb" stop-opacity=".1" offset="0"/>
+  <stop stop-opacity=".1" offset="1"/>
+ </linearGradient>
+ <clipPath id="a">
+  <rect width="102" height="20" rx="3" fill="#fff"/>
+ </clipPath>
+ <path d="m120.56 0h-72.558v20h72.558c1.8715 0 3.3782-1.5067 3.3782-3.3782v-13.244c0-1.8715-1.5067-3.3782-3.3782-3.3782z" fill="#0055d4" style="paint-order:stroke fill markers"/>
+ <path d="m3.3782 0h46.558v20h-46.558c-1.8715 0-3.3782-1.5067-3.3782-3.3782v-13.244c0-1.8715 1.5067-3.3782 3.3782-3.3782z" fill="#4d4d4d" style="paint-order:stroke fill markers"/>
+ <g fill="url(#l3d_a)" stroke-width="1.474">
+  <path d="m3.3782 0h117.19c1.8715 0 3.3782 1.5067 3.3782 3.3782v13.381c0 1.8715-1.5067 3.3782-3.3782 3.3782h-117.19c-1.8715 0-3.3782-1.5067-3.3782-3.3782v-13.381c0-1.8715 1.5067-3.3782 3.3782-3.3782z" style="paint-order:stroke fill markers"/>
+  <path d="m3.3782 0h117.19c1.8715 0 3.3782 1.5067 3.3782 3.3782v13.381c0 1.8715-1.5067 3.3782-3.3782 3.3782h-117.19c-1.8715 0-3.3782-1.5067-3.3782-3.3782v-13.381c0-1.8715 1.5067-3.3782 3.3782-3.3782z" style="paint-order:stroke fill markers"/>
+  <path d="m3.3782 0h117.19c1.8715 0 3.3782 1.5067 3.3782 3.3782v13.381c0 1.8715-1.5067 3.3782-3.3782 3.3782h-117.19c-1.8715 0-3.3782-1.5067-3.3782-3.3782v-13.381c0-1.8715 1.5067-3.3782 3.3782-3.3782z" style="paint-order:stroke fill markers"/>
+ </g>
+ <g transform="translate(6 .1778)">
+  <g fill-opacity=".3" stroke-width=".1" aria-label="Apache-2.0">
+   <path d="m53.699 8.1514-1.4717 3.9907h2.9487zm-0.6123-1.0688h1.23l3.0562 8.019h-1.1279l-0.73047-2.0571h-3.6147l-0.73047 2.0571h-1.144z"/>
+   <path d="m59.457 14.199v3.1904h-0.99365v-8.3037h0.99365v0.91309q0.31152-0.53711 0.78418-0.79492 0.47803-0.26318 1.1387-0.26318 1.0957 0 1.7778 0.87012 0.6875 0.87012 0.6875 2.2881t-0.6875 2.2881q-0.68213 0.87012-1.7778 0.87012-0.66064 0-1.1387-0.25781-0.47266-0.26318-0.78418-0.80029zm3.3623-2.1001q0-1.0903-0.45117-1.708-0.4458-0.62305-1.23-0.62305t-1.2354 0.62305q-0.4458 0.61768-0.4458 1.708t0.4458 1.7134q0.45117 0.61768 1.2354 0.61768t1.23-0.61768q0.45117-0.62305 0.45117-1.7134z"/>
+   <path d="m68.217 12.078q-1.1978 0-1.6597 0.27393t-0.46191 0.93457q0 0.52637 0.34375 0.83789 0.34912 0.30615 0.94531 0.30615 0.82178 0 1.3159-0.58008 0.49951-0.58545 0.49951-1.5522v-0.22022zm1.9712-0.4082v3.4321h-0.98828v-0.91309q-0.33838 0.54785-0.84326 0.81104-0.50488 0.25781-1.2354 0.25781-0.92383 0-1.4717-0.51562-0.54248-0.521-0.54248-1.3911 0-1.0151 0.67676-1.5308 0.68213-0.51562 2.0303-0.51562h1.3857v-0.09668q0-0.68213-0.45117-1.0527-0.4458-0.37598-1.2568-0.37598-0.51562 0-1.0044 0.12354-0.48877 0.12354-0.93994 0.37061v-0.91309q0.54248-0.20947 1.0527-0.31152 0.51025-0.10742 0.99365-0.10742 1.3052 0 1.9497 0.67676 0.64453 0.67676 0.64453 2.0518z"/>
+   <path d="m76.553 9.3169v0.92383q-0.41894-0.23096-0.84326-0.34375-0.41894-0.11816-0.84863-0.11816-0.96143 0-1.4932 0.6123-0.53174 0.60693-0.53174 1.708t0.53174 1.7134q0.53174 0.60693 1.4932 0.60693 0.42969 0 0.84863-0.11279 0.42432-0.11816 0.84326-0.34912v0.91309q-0.41357 0.19336-0.85938 0.29004-0.44043 0.09668-0.93994 0.09668-1.3589 0-2.1592-0.854t-0.80029-2.3042q0-1.4717 0.80566-2.3149 0.81104-0.84326 2.2183-0.84326 0.45654 0 0.8916 0.09668 0.43506 0.091309 0.84326 0.2793z"/>
+   <path d="m83.272 11.471v3.6309h-0.98828v-3.5986q0-0.854-0.33301-1.2783-0.33301-0.42432-0.99902-0.42432-0.80029 0-1.2622 0.51025-0.46191 0.51025-0.46191 1.3911v3.3999h-0.99365v-8.3574h0.99365v3.2764q0.35449-0.54248 0.83252-0.81104 0.4834-0.26855 1.1118-0.26855 1.0366 0 1.5684 0.64453 0.53174 0.63916 0.53174 1.8853z"/>
+   <path d="m90.389 11.847v0.4834h-4.5439q0.06445 1.0205 0.6123 1.5576 0.55322 0.53174 1.5361 0.53174 0.56934 0 1.1011-0.13965 0.53711-0.13965 1.0635-0.41894v0.93457q-0.53174 0.22559-1.0903 0.34375-0.55859 0.11816-1.1333 0.11816-1.4395 0-2.2827-0.83789-0.83789-0.83789-0.83789-2.2666 0-1.4771 0.79492-2.3418 0.80029-0.87012 2.1538-0.87012 1.2139 0 1.9175 0.78418 0.70898 0.77881 0.70898 2.1216zm-0.98828-0.29004q-0.010742-0.81104-0.45654-1.2944-0.44043-0.4834-1.1709-0.4834-0.82715 0-1.3267 0.46728-0.49414 0.46729-0.56934 1.3159z"/>
+   <path d="m91.512 11.648h2.895v0.88086h-2.895z"/>
+   <path d="m97.055 14.188h3.7866v0.91309h-5.0918v-0.91309q0.61768-0.63916 1.6812-1.7134 1.0688-1.0796 1.3428-1.3911 0.521-0.58545 0.7251-0.98828 0.20947-0.4082 0.20947-0.80029 0-0.63916-0.45117-1.042-0.4458-0.40283-1.1655-0.40283-0.51025 0-1.0796 0.17725-0.56396 0.17725-1.2085 0.53711v-1.0957q0.65527-0.26318 1.2246-0.39746 0.56934-0.13428 1.042-0.13428 1.2461 0 1.9873 0.62305 0.74121 0.62305 0.74121 1.665 0 0.49414-0.18798 0.93994-0.18262 0.44043-0.67139 1.042-0.13428 0.15576-0.854 0.90234-0.71973 0.74121-2.0303 2.0786z"/>
+   <path d="m103.12 13.737h1.1333v1.3643h-1.1333z"/>
+   <path d="m108.94 7.7969q-0.83789 0-1.2622 0.82715-0.41894 0.82178-0.41894 2.4761 0 1.6489 0.41894 2.4761 0.42432 0.82178 1.2622 0.82178 0.84326 0 1.2622-0.82178 0.42431-0.82715 0.42431-2.4761 0-1.6543-0.42431-2.4761-0.41895-0.82715-1.2622-0.82715zm0-0.85938q1.3482 0 2.0571 1.0688 0.71436 1.0635 0.71436 3.0937 0 2.0249-0.71436 3.0938-0.70898 1.0635-2.0571 1.0635-1.3481 0-2.0625-1.0635-0.70898-1.0688-0.70898-3.0938 0-2.0303 0.70898-3.0937 0.71436-1.0688 2.0625-1.0688z"/>
   </g>
-  <g
-     id="g4595"
-     transform="translate(3.9474745e-7,0.1778004)">
-    <text
-       x="245"
-       y="150"
-       transform="scale(0.1)"
-       textLength="370"
-       id="text18"
-       lengthAdjust="spacing"
-       style="font-size:110px;font-family:'DejaVu Sans', Verdana, Geneva, sans-serif;text-anchor:middle;fill:#010101;fill-opacity:0.3">license</text>
-    <text
-       x="245"
-       y="140"
-       transform="scale(0.1)"
-       textLength="370"
-       id="text20"
-       lengthAdjust="spacing"
-       style="font-size:110px;font-family:'DejaVu Sans', Verdana, Geneva, sans-serif;text-anchor:middle;fill:#ffffff">license</text>
+  <g fill="#fff" aria-label="Apache-2.0">
+   <path d="m53.72 7.1555-1.4717 3.9907h2.9487zm-0.6123-1.0688h1.23l3.0562 8.019h-1.1279l-0.73047-2.0571h-3.6147l-0.73047 2.0571h-1.144z"/>
+   <path d="m59.477 13.203v3.1904h-0.99365v-8.3037h0.99365v0.91309q0.31152-0.53711 0.78418-0.79492 0.47803-0.26318 1.1387-0.26318 1.0957 0 1.7778 0.87012 0.6875 0.87012 0.6875 2.2881 0 1.418-0.6875 2.2881-0.68213 0.87012-1.7778 0.87012-0.66064 0-1.1387-0.25781-0.47266-0.26318-0.78418-0.80029zm3.3623-2.1001q0-1.0903-0.45117-1.708-0.4458-0.62305-1.23-0.62305-0.78418 0-1.2354 0.62305-0.4458 0.61768-0.4458 1.708t0.4458 1.7134q0.45117 0.61768 1.2354 0.61768 0.78418 0 1.23-0.61768 0.45117-0.62305 0.45117-1.7134z"/>
+   <path d="m68.238 11.082q-1.1978 0-1.6597 0.27393-0.46191 0.27392-0.46191 0.93457 0 0.52637 0.34375 0.83789 0.34912 0.30615 0.94531 0.30615 0.82178 0 1.3159-0.58008 0.49951-0.58545 0.49951-1.5522v-0.22022zm1.9712-0.4082v3.4321h-0.98828v-0.91309q-0.33838 0.54785-0.84326 0.81104-0.50488 0.25781-1.2354 0.25781-0.92383 0-1.4717-0.51562-0.54248-0.521-0.54248-1.3911 0-1.0151 0.67676-1.5308 0.68213-0.51562 2.0303-0.51562h1.3857v-0.09668q0-0.68213-0.45117-1.0527-0.4458-0.37598-1.2568-0.37598-0.51562 0-1.0044 0.12354-0.48877 0.12354-0.93994 0.37061v-0.91309q0.54248-0.20947 1.0527-0.31152 0.51025-0.10742 0.99365-0.10742 1.3052 0 1.9497 0.67676 0.64453 0.67676 0.64453 2.0518z"/>
+   <path d="m76.574 8.321v0.92383q-0.41894-0.23096-0.84326-0.34375-0.41895-0.11816-0.84863-0.11816-0.96143 0-1.4932 0.6123-0.53174 0.60693-0.53174 1.708t0.53174 1.7134q0.53174 0.60693 1.4932 0.60693 0.42969 0 0.84863-0.11279 0.42432-0.11816 0.84326-0.34912v0.91309q-0.41357 0.19336-0.85938 0.29004-0.44043 0.09668-0.93994 0.09668-1.3589 0-2.1592-0.854-0.80029-0.854-0.80029-2.3042 0-1.4717 0.80566-2.3149 0.81104-0.84326 2.2183-0.84326 0.45654 0 0.8916 0.09668 0.43506 0.091309 0.84326 0.2793z"/>
+   <path d="m83.293 10.475v3.6309h-0.98828v-3.5986q0-0.854-0.33301-1.2783-0.33301-0.42432-0.99902-0.42432-0.80029 0-1.2622 0.51025t-0.46191 1.3911v3.3999h-0.99365v-8.3574h0.99365v3.2764q0.35449-0.54248 0.83252-0.81104 0.4834-0.26855 1.1118-0.26855 1.0366 0 1.5684 0.64453 0.53174 0.63916 0.53174 1.8853z"/>
+   <path d="m90.41 10.851v0.4834h-4.5439q0.06445 1.0205 0.6123 1.5576 0.55322 0.53174 1.5361 0.53174 0.56934 0 1.1011-0.13965 0.53711-0.13965 1.0635-0.41894v0.93457q-0.53174 0.22559-1.0903 0.34375t-1.1333 0.11816q-1.4395 0-2.2827-0.83789-0.83789-0.83789-0.83789-2.2666 0-1.4771 0.79492-2.3418 0.80029-0.87012 2.1538-0.87012 1.2139 0 1.9175 0.78418 0.70898 0.77881 0.70898 2.1216zm-0.98828-0.29004q-0.01074-0.81104-0.45654-1.2944-0.44043-0.4834-1.1709-0.4834-0.82715 0-1.3267 0.46729-0.49414 0.46729-0.56934 1.3159z"/>
+   <path d="m91.532 10.652h2.895v0.88086h-2.895z"/>
+   <path d="m97.075 13.193h3.7866v0.91309h-5.0918v-0.91309q0.61768-0.63916 1.6812-1.7134 1.0688-1.0796 1.3428-1.3911 0.521-0.58545 0.7251-0.98828 0.20947-0.4082 0.20947-0.80029 0-0.63916-0.45117-1.042-0.4458-0.40283-1.1655-0.40283-0.51025 0-1.0796 0.17725-0.56396 0.17725-1.2085 0.53711v-1.0957q0.65527-0.26318 1.2246-0.39746t1.042-0.13428q1.2461 0 1.9873 0.62305 0.74121 0.62305 0.74121 1.665 0 0.49414-0.18799 0.93994-0.18262 0.44043-0.67139 1.042-0.13428 0.15576-0.854 0.90234-0.71973 0.74121-2.0303 2.0786z"/>
+   <path d="m103.14 12.741h1.1333v1.3643h-1.1333z"/>
+   <path d="m108.96 6.801q-0.83789 0-1.2622 0.82715-0.41895 0.82178-0.41895 2.4761 0 1.6489 0.41895 2.4761 0.42431 0.82178 1.2622 0.82178 0.84327 0 1.2622-0.82178 0.42432-0.82715 0.42432-2.4761 0-1.6543-0.42432-2.4761-0.41894-0.82715-1.2622-0.82715zm0-0.85938q1.3482 0 2.0571 1.0688 0.71436 1.0635 0.71436 3.0938 0 2.0249-0.71436 3.0938-0.70898 1.0635-2.0571 1.0635-1.3481 0-2.0625-1.0635-0.70898-1.0688-0.70898-3.0938 0-2.0303 0.70898-3.0938 0.71436-1.0688 2.0625-1.0688z"/>
   </g>
+ </g>
+ <g transform="translate(3.9475e-7 .1778)">
+  <g transform="scale(.1)" fill="#010101" fill-opacity=".3" aria-label="license">
+   <path d="m71.531 66.426h9.8828v83.574h-9.8828z"/>
+   <path d="m99.763 89.844h9.8828v60.156h-9.8828zm0-23.418h9.8828v12.515h-9.8828z"/>
+   <path d="m171.29 92.153v9.2383q-4.1894-2.3096-8.4326-3.4375-4.1894-1.1816-8.4863-1.1816-9.6142 0-14.932 6.123-5.3174 6.0693-5.3174 17.08 0 11.011 5.3174 17.134 5.3174 6.0693 14.932 6.0693 4.2969 0 8.4863-1.1279 4.2432-1.1816 8.4326-3.4912v9.1309q-4.1357 1.9336-8.5938 2.9004-4.4043 0.9668-9.3994 0.9668-13.589 0-21.592-8.54t-8.0029-23.042q0-14.717 8.0566-23.149 8.1104-8.4326 22.183-8.4326 4.5654 0 8.916 0.9668 4.3506 0.91308 8.4326 2.793z"/>
+   <path d="m237.6 117.45v4.834h-45.439q0.64453 10.205 6.123 15.576 5.5322 5.3174 15.361 5.3174 5.6934 0 11.011-1.3965 5.3711-1.3965 10.635-4.1895v9.3457q-5.3174 2.2559-10.903 3.4375-5.5859 1.1816-11.333 1.1816-14.395 0-22.827-8.3789-8.3789-8.3789-8.3789-22.666 0-14.771 7.9492-23.418 8.0029-8.7012 21.538-8.7012 12.139 0 19.175 7.8418 7.0898 7.7881 7.0898 21.216zm-9.8828-2.9004q-0.10742-8.1104-4.5654-12.944-4.4043-4.834-11.709-4.834-8.2715 0-13.267 4.6728-4.9414 4.6728-5.6934 13.159z"/>
+   <path d="m301.49 113.69v36.309h-9.8828v-35.986q0-8.54-3.3301-12.783-3.3301-4.2432-9.9902-4.2432-8.0029 0-12.622 5.1025-4.6191 5.1025-4.6191 13.911v33.999h-9.9365v-60.156h9.9365v9.3457q3.5449-5.4248 8.3252-8.1104 4.834-2.6855 11.118-2.6855 10.366 0 15.684 6.4453 5.3174 6.3916 5.3174 18.853z"/>
+   <path d="m357.23 91.616v9.3457q-4.1895-2.1484-8.7012-3.2227-4.5117-1.0742-9.3457-1.0742-7.3584 0-11.064 2.2559-3.6524 2.2559-3.6524 6.7676 0 3.4375 2.6318 5.4248 2.6318 1.9336 10.581 3.7061l3.3838 0.75195q10.527 2.2559 14.932 6.3916 4.458 4.082 4.458 11.44 0 8.3789-6.6602 13.267-6.6064 4.8877-18.208 4.8877-4.834 0-10.098-0.9668-5.21-0.91309-11.011-2.793v-10.205q5.4785 2.8467 10.796 4.2969 5.3174 1.3965 10.527 1.3965 6.9824 0 10.742-2.3633 3.7598-2.417 3.7598-6.7676 0-4.0283-2.7393-6.1768-2.6856-2.1484-11.87-4.1358l-3.4375-0.80566q-9.1846-1.9336-13.267-5.9082-4.082-4.0283-4.082-11.011 0-8.4863 6.0156-13.105 6.0156-4.6191 17.08-4.6191 5.4785 0 10.312 0.80566 4.834 0.80566 8.916 2.417z"/>
+   <path d="m425.31 117.45v4.834h-45.439q0.64453 10.205 6.123 15.576 5.5322 5.3174 15.361 5.3174 5.6934 0 11.011-1.3965 5.3711-1.3965 10.635-4.1895v9.3457q-5.3174 2.2559-10.903 3.4375-5.5859 1.1816-11.333 1.1816-14.395 0-22.827-8.3789-8.3789-8.3789-8.3789-22.666 0-14.771 7.9492-23.418 8.0029-8.7012 21.538-8.7012 12.139 0 19.175 7.8418 7.0898 7.7881 7.0898 21.216zm-9.8828-2.9004q-0.10742-8.1104-4.5654-12.944-4.4043-4.834-11.709-4.834-8.2715 0-13.267 4.6728-4.9414 4.6728-5.6934 13.159z"/>
+  </g>
+  <g transform="scale(.1)" fill="#fff" aria-label="license">
+   <path d="m71.531 56.426h9.8828v83.574h-9.8828z"/>
+   <path d="m99.763 79.844h9.8828v60.156h-9.8828zm0-23.418h9.8828v12.515h-9.8828z"/>
+   <path d="m171.29 82.153v9.2383q-4.1894-2.3096-8.4326-3.4375-4.1894-1.1816-8.4863-1.1816-9.6142 0-14.932 6.123-5.3174 6.0693-5.3174 17.08 0 11.011 5.3174 17.134 5.3174 6.0693 14.932 6.0693 4.2969 0 8.4863-1.1279 4.2432-1.1816 8.4326-3.4912v9.1309q-4.1357 1.9336-8.5938 2.9004-4.4043 0.9668-9.3994 0.9668-13.589 0-21.592-8.54t-8.0029-23.042q0-14.717 8.0566-23.149 8.1104-8.4326 22.183-8.4326 4.5654 0 8.916 0.9668 4.3506 0.91308 8.4326 2.793z"/>
+   <path d="m237.6 107.45v4.834h-45.439q0.64453 10.205 6.123 15.576 5.5322 5.3174 15.361 5.3174 5.6934 0 11.011-1.3965 5.3711-1.3965 10.635-4.1895v9.3457q-5.3174 2.2559-10.903 3.4375-5.5859 1.1816-11.333 1.1816-14.395 0-22.827-8.3789-8.3789-8.3789-8.3789-22.666 0-14.771 7.9492-23.418 8.0029-8.7012 21.538-8.7012 12.139 0 19.175 7.8418 7.0898 7.7881 7.0898 21.216zm-9.8828-2.9004q-0.10742-8.1104-4.5654-12.944-4.4043-4.834-11.709-4.834-8.2715 0-13.267 4.6729-4.9414 4.6729-5.6934 13.159z"/>
+   <path d="m301.49 103.69v36.309h-9.8828v-35.986q0-8.54-3.3301-12.783t-9.9902-4.2432q-8.0029 0-12.622 5.1025t-4.6191 13.911v33.999h-9.9365v-60.156h9.9365v9.3457q3.5449-5.4248 8.3252-8.1104 4.834-2.6855 11.118-2.6855 10.366 0 15.684 6.4453 5.3174 6.3916 5.3174 18.853z"/>
+   <path d="m357.23 81.616v9.3457q-4.1895-2.1484-8.7012-3.2227-4.5117-1.0742-9.3457-1.0742-7.3584 0-11.064 2.2559-3.6524 2.2559-3.6524 6.7676 0 3.4375 2.6318 5.4248 2.6318 1.9336 10.581 3.7061l3.3838 0.75195q10.527 2.2559 14.932 6.3916 4.458 4.082 4.458 11.44 0 8.3789-6.6602 13.267-6.6064 4.8877-18.208 4.8877-4.834 0-10.098-0.9668-5.21-0.91309-11.011-2.793v-10.205q5.4785 2.8467 10.796 4.2969 5.3174 1.3965 10.527 1.3965 6.9824 0 10.742-2.3633 3.7598-2.417 3.7598-6.7676 0-4.0283-2.7393-6.1768-2.6856-2.1484-11.87-4.1358l-3.4375-0.80566q-9.1846-1.9336-13.267-5.9082-4.082-4.0283-4.082-11.011 0-8.4863 6.0156-13.105 6.0156-4.6191 17.08-4.6191 5.4785 0 10.312 0.80566 4.834 0.80566 8.916 2.417z"/>
+   <path d="m425.31 107.45v4.834h-45.439q0.64453 10.205 6.123 15.576 5.5322 5.3174 15.361 5.3174 5.6934 0 11.011-1.3965 5.3711-1.3965 10.635-4.1895v9.3457q-5.3174 2.2559-10.903 3.4375-5.5859 1.1816-11.333 1.1816-14.395 0-22.827-8.3789-8.3789-8.3789-8.3789-22.666 0-14.771 7.9492-23.418 8.0029-8.7012 21.538-8.7012 12.139 0 19.175 7.8418 7.0898 7.7881 7.0898 21.216zm-9.8828-2.9004q-0.10742-8.1104-4.5654-12.944-4.4043-4.834-11.709-4.834-8.2715 0-13.267 4.6729-4.9414 4.6729-5.6934 13.159z"/>
+  </g>
+ </g>
 </svg>
diff --git a/README.md b/README.md
index 5446a16..21cdd7b 100644
--- a/README.md
+++ b/README.md
@@ -1,22 +1,15 @@
- Ansible role: ntp
+[![Ansible Galaxy](https://raw.githubusercontent.com/roles-ansible/ansible_role_ntp/main/.github/galaxy.svg?sanitize=true)](https://galaxy.ansible.com/do1jlr/ntp) [![MIT License](https://raw.githubusercontent.com/roles-ansible/ansible_role_ntp/main/.github/license.svg?sanitize=true)](https://github.com/roles-ansible/ansible_role_ntp/blob/main/LICENSE)
+
+ Ansible role ntp
 ======================
 
-This role provide a compliance for install ntp on your target host.
-
-## Requirements
-
-This role was developed using Ansible 2.7 Backwards compatibility is not guaranteed.
-
-```
-Please have a look into the meta file for supportet platform overview!
-
-Please note: It could need some fixes on exotic untested devices!
-```
+Ansible role to install and configure the Network Time Protocol (NTP) Daemon.
 
+This role was built with support for a variety of operating systems. Including Debian/Ubuntu, RHEL, Suse and Archlinux based Linux versions as well as FreeBSD, Darwin and OpenBSD.
 
 ## Role Variables
 
-This role has multiple variables. The defaults for all these variables are the following:
+In addition to the operating system-dependent variables, there are the following default values to adjust:
 
 ```yaml
 ---
@@ -32,14 +25,18 @@ ntp_restrict:
 # Ntp server to use for date synchronization
 # Default is worldwide pool
 ntp_servers:
+  - ptbtime1.ptb.de
+  - ptbtime3.ptb.de
   - 0.pool.ntp.org iburst
   - 1.pool.ntp.org iburst
   - 2.pool.ntp.org iburst
   - 3.pool.ntp.org iburst
 
 # Enable or disable ntp statistics
-# Default is false
 ntp_statistics: false
+
+# version check for this playbook (true is recomended)
+submodules_versioncheck: false
 ```
 
 ## Resources
diff --git a/meta/main.yml b/meta/main.yml
index 3945ae7..7bad56f 100644
--- a/meta/main.yml
+++ b/meta/main.yml
@@ -2,8 +2,8 @@
 galaxy_info:
   role_name: ntp
   author: do1jlr
-  description: Ansible role for manage ntp daemon
-  license: "Apache"
+  description: install and configure the Network Time Protocol (NTP) Daemon
+  license: "Apache-2.0"
 
   min_ansible_version: 2.11