Update cache-azure-active-directory-for-authentication.md to include token scope

Author: shpathak-msft

articles/azure-cache-for-redis/cache-azure-active-directory-for-authentication.md

@@ -83,7 +83,7 @@ Because most Azure Cache for Redis clients assume that a password/access key is
 
 ### Azure AD Client Workflow
 
-1. Configure your client application to acquire an Azure AD token for your application using the [Microsoft Authentication Library (MSAL)](/azure/active-directory/develop/msal-overview).
+1. Configure your client application to acquire an Azure AD token for scope `acca5fbb-b7e4-4009-81f1-37e38fd66d78/.default` using the [Microsoft Authentication Library (MSAL)](/azure/active-directory/develop/msal-overview). 
 
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