docs: update workers example readme

packages/cloudflare_workers/example/README.md

@@ -1,31 +1,17 @@
 # Cloudflare Workers
 
-Add this file to the `.dart_tool/workers/entry.js` directory:
-
-> Temporary workaround until CLI is in place.
+## Development
 
-```js
-// This is a generated file, do not modify.
-import "./main.dart.js";
+To run this example locally:
 
-export default {
-  async fetch(request, env, ctx) {
-    if (self.__dartFetchHandler !== undefined) {
-      return self.__dartFetchHandler(request, env, ctx);
-    }
-  },
-  async scheduled(event, env, ctx) {
-    if (self.__dartScheduledHandler !== undefined) {
-      return self.__dartScheduledHandler(event, env, ctx);
-    }
-  }
-};
+```bash
+wrangler dev --local
 ```
 
-## Development
+## Deploy
 
-To run this example locally:
+To deploy, this example:
 
 ```bash
-wrangler dev --local
+wrangler publish
 ```