[Queues] Add R2 Event Notifications disclaimer w.r.e producer Workers (#17269)

Author: LA

src/content/docs/queues/get-started.mdx

@@ -20,7 +20,7 @@ To use Queues, you will need:
 
 ## 1. Create a Worker project
 
-You will access your queue from a Worker, the producer Worker. You must create at least one producer Worker to publish messages onto your queue.
+You will access your queue from a Worker, the producer Worker. You must create at least one producer Worker to publish messages onto your queue. If you are using [R2 Bucket Event Notifications](/r2/buckets/event-notifications/), then you do not need a producer Worker.
 
 To create a producer Worker, run: