DOC deploy_hf_model_aml notebook references invalid markdown file

[romanlutz]

The notebook deploy_hf_model_aml.py references a non-existing file setup_azure.md. We must have moved that, renamed it, or deleted it at some point. It's not entirely obvious to me what the fix is here. @rdheekonda should be able to update this issue to reflect that.

# - Execute the `az login` command to sign in to your Azure subscription. For detailed instructions, refer to the "Authenticate with Azure Subscription" section in the notebook provided [here](../setup/setup_azure.md)