Update default broker account sample (#35003)

* Update default broker account sample

* Update variable name to match previous code sample

Author: scottaddie

sdk/identity/azure-identity-broker/README.md

@@ -38,14 +38,6 @@ Microsoft Entra applications rely on redirect URIs to determine where to send th
 ms-appx-web://Microsoft.AAD.BrokerPlugin/{client_id}
 ```
 
-## Use the default account for sign-in
-
-When the `use_default_broker_account` argument is set to `True`, the credential will attempt to silently use the default broker account. If using the default account fails, the credential will fall back to interactive authentication.
-
-```
-cred = new InteractiveBrowserBrokerCredential(use_default_broker_account=True)
-```
-
 ## Examples
 
 ### Authenticate with `InteractiveBrowserBrokerCredential`
@@ -64,6 +56,15 @@ credential = InteractiveBrowserBrokerCredential(parent_window_handle=current_win
 client = BlobServiceClient(account_url, credential=credential)
 ```
 
+To bypass the account selection dialog and use the account currently signed into the operating system, set the `use_default_broker_account` argument to `True`. The credential will attempt to silently use the default broker account. If using the default account fails, the credential will fall back to interactive authentication.
+
+```python
+credential = new InteractiveBrowserBrokerCredential(
+    parent_window_handle=current_window_handle,
+    use_default_broker_account=True
+)
+```
+
 ## Troubleshooting
 
 See the Azure Identity [troubleshooting guide][troubleshooting_guide] for details on how to diagnose various failure scenarios.