Add Azure Account extension version requirement to Identity README (Azure#23518)

* Add Azure Account extension version requirement to Identity README

* React to feedback

Author: scottaddie

sdk/identity/azure-identity/README.md

@@ -36,12 +36,9 @@ local development.
 
 #### Authenticate via Visual Studio Code
 
-`DefaultAzureCredential` and `VisualStudioCodeCredential` can authenticate as
-the user signed in to Visual Studio Code's
-[Azure Account extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode.azure-account).
-After installing the extension, sign in to Azure in Visual Studio Code by
-pressing `F1` to open the command palette and running the `Azure: Sign In`
-command.
+Developers using Visual Studio Code can use the [Azure Account extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode.azure-account) to authenticate via the editor. Apps using `DefaultAzureCredential` or `VisualStudioCodeCredential` can then use this account to authenticate calls in their app when running locally.
+
+To authenticate in Visual Studio Code, ensure **version 0.9.11 or earlier** of the Azure Account extension is installed. To track progress toward supporting newer extension versions, see [this GitHub issue](https://github.com/Azure/azure-sdk-for-net/issues/27263). Once installed, open the **Command Palette** and run the **Azure: Sign In** command.
 
 #### Authenticate via the Azure CLI