Update example

Author: satadrubiswasmsft

teams/teams-ps/teams/Add-TeamsAppInstallation.md

@@ -38,12 +38,14 @@ Add a Teams App to Microsoft Teams.
 PS C:\> Add-TeamsAppInstallation -AppId b9cc7986-dd56-4b57-ab7d-9c4e5288b775 -TeamId 31f1ff6c-d48c-4f8a-b2e1-abca7fd399df
 ```
 
+This example adds a Teams App to Microsoft Teams.
+
 ### Example 2
 ```powershell
 PS C:\> Add-TeamsAppInstallation -AppId b9cc7986-dd56-4b57-ab7d-9c4e5288b775 -TeamId 31f1ff6c-d48c-4f8a-b2e1-abca7fd399df -Permissions "TeamSettings.Read.Group ChannelMessage.Read.Group"
 ```
 
-This example adds a Teams App to Microsoft Teams.
+This example adds a Teams App to Microsoft Teams with RSC Permissions.
 
 ## PARAMETERS