message: docs(angular): add note not to use OnPush with ion-nav or ion-router-outlet
diff: @@ -26,6 +26,8 @@ Ionic embraces the life cycle events provided by Angular. The two Angular events
  For more info on the Angular Component Life Cycle events, visit their [component lifecycle docs](https://angular.io/guide/lifecycle-hooks).
  +> Components that use `ion-nav` or `ion-router-outlet` should not use the `OnPush` change detection strategy. Doing so will prevent lifecycle hooks such as `ngOnInit` from firing. Additionally, asynchronous state changes may not render properly.
  +
  ## Ionic Page Events
  In addition to the Angular life cycle events, Ionic Angular provides a few additional events that you can use:
  