Improve seealso (#6766)

* Improve seealso.

* Update ignore files.

plugins/lookup/etcd.py

@@ -39,6 +39,10 @@ DOCUMENTATION = '''
                 - toggle checking that the ssl certificates are valid, you normally only want to turn this off with self-signed certs.
             default: true
             type: boolean
+    seealso:
+    - module: community.general.etcd3
+    - plugin: community.general.etcd3
+      plugin_type: lookup
 '''
 
 EXAMPLES = '''

plugins/lookup/etcd3.py

@@ -94,8 +94,8 @@ DOCUMENTATION = '''
       environment variable and keep O(endpoints), O(host), and O(port) unused.
     seealso:
     - module: community.general.etcd3
-    - ref: ansible_collections.community.general.etcd_lookup
-      description: The etcd v2 lookup.
+    - plugin: community.general.etcd
+      plugin_type: lookup
 
     requirements:
     - "etcd3 >= 0.10"

tests/sanity/ignore-2.13.txt

@@ -1,4 +1,6 @@
 .azure-pipelines/scripts/publish-codecov.py replace-urlopen
+plugins/lookup/etcd.py validate-modules:invalid-documentation
+plugins/lookup/etcd3.py validate-modules:invalid-documentation
 plugins/modules/consul.py validate-modules:doc-missing-type
 plugins/modules/consul.py validate-modules:undocumented-parameter
 plugins/modules/consul_session.py validate-modules:parameter-state-invalid-choice

tests/sanity/ignore-2.14.txt

@@ -1,4 +1,6 @@
 .azure-pipelines/scripts/publish-codecov.py replace-urlopen
+plugins/lookup/etcd.py validate-modules:invalid-documentation
+plugins/lookup/etcd3.py validate-modules:invalid-documentation
 plugins/modules/consul.py validate-modules:doc-missing-type
 plugins/modules/consul.py validate-modules:undocumented-parameter
 plugins/modules/consul_session.py validate-modules:parameter-state-invalid-choice