Add subject-rbac-steps to metadata

Author: dksimpson

articles/azure-app-configuration/howto-integrate-azure-managed-service-identity.md

@@ -5,7 +5,7 @@ description: Authenticate to Azure App Configuration using managed identities
 author: AlexandraKemperMS
 ms.author: alkemper
 ms.service: azure-app-configuration
-ms.custom: devx-track-csharp, fasttrack-edit
+ms.custom: devx-track-csharp, fasttrack-edit, subject-rbac-steps
 ms.topic: conceptual
 ms.date: 04/08/2021
 ---