Updated Caching credentials with Azure CLI (markdown)

Caching-credentials-with-Azure-CLI.md

@@ -3,6 +3,9 @@ My user account/credentials do not get cached between notebook runs
 You can force caching of credentials for a session by authenticating using Azure CLI.
 
 You must have Azure CLI installed on the Jupyter server you are using (e.g. Azure ML Compute).
+Azure ML Compute instances have Azure CLI installed by default. Use this URL
+to [obtain the latest Azure CLI](https://docs.microsoft.com/en-us/cli/azure/install-azure-cli),
+if you need to install it.
 
 In an empty cell type and execute the following:
 ```python