Move the comment block from worker/index.js to CONTRIBUTING.md

[SerpentBytes]

Description

This issue is related to the PR created for #1. We want to extract the auto-generated comment block at the top of the worker/index.js and add it to CONTRIBUTING.md.

The comment block looks as follows:

 *
  * - Run `npx wrangler dev src/index.js` in your terminal to start a development server
  * - Open a browser tab at http://localhost:8080/ to see your worker in action
  * - Run `npx wrangler publish src/index.js --name my-worker` to publish your worker
  *
  * Learn more at https://developers.cloudflare.com/workers/
  */

Additional Information

Note: The file has undergone some changes since it was first generated, so some of the information in the comment block, such as the file path and port number, may be outdated.

[rudychung]

Could I give this a try? I'm not 100% sure what is wanted though, just moving the block comment content over to CONTRIBUTING.md?