Add Azure CLI installation reference
@@ -68,6 +68,9 @@ Set up Azure Container Registry
To use Azure Container Registry (ACR), you'll need to provide BinderHub with proper credentials so it can push images.
You can do so by creating a `Service Principal <https://docs.microsoft.com/en-us/azure/active-directory/develop/app-objects-and-service-principals>`_ that has the `AcrPush <https://docs.microsoft.com/en-us/azure/role-based-access-control/built-in-roles#acrpush>`_ role.
+This section uses the Azure command line.
+Installation instructions can be found `here <https://docs.microsoft.com/en-us/cli/azure/install-azure-cli?view=azure-cli-latest>`_.
+
1. Login to your Azure account::
az login
