reference to ARM template

Author: dkamstra

articles/azure-monitor/alerts/action-groups.md

@@ -159,9 +159,7 @@ While setting up *Email ARM Role* you need to make sure below 3 conditions are m
 
 An Event Hub action publishes notifications to an [Azure Event Hub](~/articles/event-hubs/event-hubs-about.md). You may then subscribe to the alert notification stream from your event receiver.
 
-To define an Event Hub action you must have previously created an Event Hub. From the Azure portal select the Event Hub action type.
-
-![The "Add Event Hub action" dialog](./media/action-groups/action-group-event-hub.png)
+Currently the Event Hub action may only be defined using an [Azure Resource Manager template](./action-groups-create-resource-manager-template.md).
 
 ### Function
 Calls an existing HTTP trigger endpoint in [Azure Functions](../../azure-functions/functions-get-started.md). To handle a request, your endpoint must handle the HTTP POST verb.