message: Meta: Add reverse-engineering example to docs
diff: @@ -115,3 +115,18 @@ npx web-ext run # Open extension in Firefox
  ```
  Or you can [load it manually in Chrome](https://www.smashingmagazine.com/2017/04/browser-extension-edge-chrome-firefox-opera-brave-vivaldi/#google-chrome-opera-vivaldi) or [Firefox](https://www.smashingmagazine.com/2017/04/browser-extension-edge-chrome-firefox-opera-brave-vivaldi/#mozilla-firefox).
  +
  +## Reverse-engineering GitHub
  +
  +GitHub fires several custom events that we can listen to. You can run this piece of code in the console to start seeing every event being fired:
  +
  +```js
  +d = Node.prototype.dispatchEvent;
  +Node.prototype.dispatchEvent = function (...a) {
  + console.log(...a);
  + // debugger; // Uncomment when necessary
  + d.apply(this, a);
  +}
  +```
  +
  +<img width="379" alt="screen" src="https://user-images.githubusercontent.com/1402241/79168882-406ea100-7deb-11ea-9e9c-ad657202422f.png">
  