message: Fix typo
  Fix typo relating to `this.run` vs `app.run`. `app.run` fires a global event.
diff: @@ -32,7 +32,7 @@ export class HelloComponent extends Component {
  }
  ```
  -In the example above, _this.run_ fires a local event. _this.run_ fires a global event.
  +In the example above, _this.run_ fires a local event. _app.run_ fires a global event.
  ## Routing Event
  