message: docs(router): use pipe in activatedRoute example
  Copying the example, mentioned at Activated Route (https://angular.io/api/router/ActivatedRoute), to Stackblitz doesn't compile:
  That's because the example does not use .pipe.
  I've updated the example to include `pipe`.
  PR Close
diff: @@ -95,10 +95,10 @@ export function createEmptyStateSnapshot(
  * @Component({...})
  * class MyComponent {
  * constructor(route: ActivatedRoute) {
  - * const id: Observable<string> = route.params.map(p => p.id);
  - * const url: Observable<string> = route.url.map(segments => segments.join(''));
  + * const id: Observable<string> = route.params.pipe(map(p => p.id));
  + * const url: Observable<string> = route.url.pipe(map(segments => segments.join('')));
  * // route.data includes both `data` and `resolve`
  - * const user = route.data.map(d => d.user);
  + * const user = route.data.pipe(map(d => d.user));
  * }
  * }
  * ```
  