Docs improvements. (#3893) (#3895)

(cherry picked from commit 59bbaeed77)

plugins/lookup/etcd3.py

@@ -93,7 +93,7 @@ DOCUMENTATION = '''
       environment variable and keep I(endpoints), I(host), and I(port) unused.
     seealso:
     - module: community.general.etcd3
-    - ref: etcd_lookup
+    - ref: ansible_collections.community.general.etcd_lookup
       description: The etcd v2 lookup.
 
     requirements:

plugins/modules/database/misc/redis_data_info.py

@@ -26,6 +26,7 @@ extends_documentation_fragment:
   - community.general.redis
 
 seealso:
+  - module: community.general.redis_data
   - module: community.general.redis_info
   - module: community.general.redis
 '''

plugins/modules/net_tools/snmp_facts.py

@@ -127,7 +127,7 @@ ansible_sysname:
   type: str
   sample: ubuntu-user
 ansible_syslocation:
-  description: The physical location of this node (e.g., `telephone closet, 3rd floor').
+  description: The physical location of this node (e.g., C(telephone closet, 3rd floor)).
   returned: success
   type: str
   sample: Sitting on the Dock of the Bay

plugins/modules/system/nosh.py

@@ -45,7 +45,7 @@ options:
         required: false
         type: bool
         description:
-            - Enable or disable the service according to local preferences in *.preset files.
+            - Enable or disable the service according to local preferences in C(*.preset) files.
               Mutually exclusive with I(enabled). Only has an effect if set to true. Will take
               effect prior to I(state=reset).
     user: