Add missed file

Author: Gilca Stefan

articles/communication-services/quickstarts/includes/manage-teams-identity-net.md

@@ -76,7 +76,7 @@ namespace CommunicationAccessTokensQuickstart
 
 ### Step 1: Receive the Azure AD user token via the MSAL library
 
-The first step in the token exchange flow is getting a token for your Teams user by using [Microsoft.Identity.Client](https://docs.microsoft.com/azure/active-directory/develop/reference-v2-libraries).
+The first step in the token exchange flow is getting a token for your Teams user by using [Microsoft.Identity.Client](../../../active-directory/develop/reference-v2-libraries.md).
 
 ```csharp
 string appId = "<contoso_application_id>";