Add Bash and PowerShell examples for Wiki discovery

Author: v-soujanya

azure-devops/azext_devops/dev/team/_help.py

@@ -147,12 +147,14 @@ def load_team_help():
                    https://docs.microsoft.com/en-us/rest/api/azure/devops/
     long-summary:
     examples:
-        - name: Discover areas related to 'Wiki'
+        - name: Discover areas related to 'Wiki' (Bash)
           text: |
             az devops invoke --query "[?contains(area,'wiki')]"
 
-        - name: PowerShell Command to Get all Wikis
+        - name: Discover areas related to 'Wiki' (PowerShell)
           text: |
+            Note:
+            PowerShell requires single-quoted JMESPath queries.
             az devops invoke --query '[?contains(area, `wiki`)]'
 
         - name: Get all wikis in a project