[Queues] Simplify example that pushes to a Queue via a Worker

Author: sdnts

src/content/docs/queues/examples/publish-to-a-queue-via-workers.mdx

@@ -14,7 +14,7 @@ import { WranglerConfig } from "~/components";
 
 The following example shows you how to publish messages to a Queue from a Worker. The example uses a Worker that receives a JSON payload from the request body and writes it as-is to the Queue, but in a real application you might have more logic before you queue a message.
 
-### Prerequisites
+## Prerequisites
 
 - A [queue created](/queues/get-started/#3-create-a-queue) via the [Cloudflare dashboard](https://dash.cloudflare.com) or the [wrangler CLI](/workers/wrangler/install-and-update/).
 - A [configured **producer** binding](/queues/configuration/configure-queues/#producer-worker-configuration) in the Cloudflare dashboard or Wrangler file.