Add description on how to show ACS commit id (a.k.a Git revision) with Azure CLI

Author: jiec-msft

articles/spring-apps/enterprise/how-to-enterprise-application-configuration-service.md

@@ -436,10 +436,16 @@ This command produces JSON output similar to the following example:
       "example.property.application.name: example-service",
       "example.property.cloud: Azure"
     ]
+  },
+  "metadata": {
+    "gitRevisions": "[{\"url\":\"{gitRepoUrl}\",\"revision\":\"{revisionInfo}\"}]"
   }
 }
 ```
 
+> [!NOTE]
+> The "metadata" and "gitRevisions" are not available for Application Configuration Service Gen1 version.
+
 You can also use this command with the `--export-path {/path/to/target/folder}` parameter to export the configuration file to the specified folder. It supports both relative paths and absolute paths. If you don't specify the path, the command uses the path of the current directory by default.
 
 ## Examine configuration file in the app
@@ -457,6 +463,9 @@ After you bind the app to the Application Configuration Service and set the [Pat
 
 1. Check the content of the configuration file using commands such as `cat`.
 
+> [!NOTE]
+> The Git revision information is not available in the app.
+
 ## Check logs
 
 The following sections show you how to view application logs by using either the Azure CLI or the Azure portal.