Fix lookup plugins documentation (nios, conjur_variable) (#35847)

* conjur_variable lookup plugin doc: fix YAML
* nios lookup plugin doc: fix a typo

lib/ansible/plugins/lookup/conjur_variable.py

@@ -13,9 +13,9 @@ DOCUMENTATION = """
     version_added: "2.5"
     short_description: Fetch credentials from CyberArk Conjur.
     description:
-      - Retrieves credentials from Conjur using the controlling host's Conjur identity. Conjur info: U(https://www.conjur.org/).
+      - "Retrieves credentials from Conjur using the controlling host's Conjur identity. Conjur info: U(https://www.conjur.org/)."
     requirements:
-      - The controlling host running Ansible has a Conjur identity. (More: U(https://developer.conjur.net/key_concepts/machine_identity.html))
+      - 'The controlling host running Ansible has a Conjur identity. (More: U(https://developer.conjur.net/key_concepts/machine_identity.html))'
     options:
       _term:
         description: Variable path

lib/ansible/plugins/lookup/nios.py

@@ -45,7 +45,7 @@ options:
       required: False
       default: null
     extattrs:
-      descrpition: a dict object that is used to filter on extattrs
+      description: a dict object that is used to filter on extattrs
       required: false
       default: null
 """