Merge pull request #7657 from Azure/tentant-id-details

Update tenantId documentation details

Author: markcowl

src/ResourceManager/Profile/Commands.Profile/ChangeLog.md

@@ -20,6 +20,7 @@
 ## Current Release
 * Update common code to use latest version of ClientRuntime
 * Rename param TenantId in cmdlet Connect-AzureRmAccount to Tenant and add an alias for TenantId
+* Updated TenantId description for Connect-AzureRmAccount
 * Fix error message for failed login when providing tenant domain
     - https://github.com/Azure/azure-powershell/issues/6936
 * Fix issue with context name clashing for accounts with no subscriptions in tenant

src/ResourceManager/Profile/Commands.Profile/help/Connect-AzureRmAccount.md

@@ -470,7 +470,7 @@ Accept wildcard characters: False
 ```
 
 ### -TenantId
-Optional tenant name or ID
+Optional domain name or tenant ID. Domain name will not work in all sign-in situations. For Cloud Solution Provider (CSP) sign-in, tenant ID is required.
 
 ```yaml
 Type: System.String