add galaxy meta data

README.md

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  ansible role avahi_client
 ===========================
 
-Ansible role to resolve the .local domain via mdns and discover avahi services.
+Avahi provides local hostname resolution using a "hostname.local" naming scheme.
+This ansible role installs the required dependencies and configures the DNS resolver accordingly.
+
+You can opt-out from deploying a new ``/etc/nsswitch.conf`` config by setting ``avahi__configure_nsswitch`` to ``false``.
+
+You can opt-in in a simple versionscheck that can prevent you from running a older version of this role by setting ``submodules_versioncheck`` to ``true``.
+
+ Learn more
+------------
++ [/etc/nsswitch.conf](https://man7.org/linux/man-pages/man5/nsswitch.conf.5.html)
++ Avahi [wiki.archlinux.org](https://wiki.archlinux.org/title/Avahi)

meta/main.yml

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+---
+galaxy_info:
+  role_name: avahi_client
+  author: do1jlr
+  description: Avahi provides local hostname resolution using a "hostname.local" naming scheme.
+  license: "MIT"
+  min_ansible_version: 2.11
+  github_branch: main
+  platforms:
+    - name: Archlinux
+      versions: all
+    - name: Debian
+      versions: all
+    - name: Ubuntu
+      versions: all
+  galaxy_tags:
+    - avahi
+    - client
+    - local
+    - mdns
+    - bonjour
+dependencies: []

vars/main.yml

@@ -1,4 +1,4 @@
 ---
 # versionscheck
-playbook_version_number: 4
+playbook_version_number: 5
 playbook_version_path: 'do1jlr.avahi_client.version'