message: docs(README): update renderer example for Renderer2
diff: @@ -99,8 +99,8 @@ This repository will host the various tools like engines to integrate with vario
  - Also for RxJs timeouts, make sure to _cancel_ their stream on success, for they can slow down rendering as well.
  - **Don't manipulate the nativeElement directly**. Use the _Renderer2_. We do this to ensure that in any environment we're able to change our view.
  ```
  -constructor(element: ElementRef, renderer: Renderer) {
  - renderer.setElementStyle(element.nativeElement, 'font-size', 'x-large');
  +constructor(element: ElementRef, renderer: Renderer2) {
  + renderer.setStyle(element.nativeElement, 'font-size', 'x-large');
  }
  ```
  - The application runs XHR requests on the server & once again on the Client-side (when the application bootstraps)
  