Update page-component.md

docs/en/framework/ui/angular/page-component.md

@@ -159,6 +159,8 @@ export class MyPageRenderStrategy implements PageRenderStrategy {
    * an async service can be used within.
 
   constructor(private service: SomeAsyncService) {}
+  or 
+  service = inject(SomeAsyncService)
 
   shouldRender(type: string) {
     return this.service.checkTypeAsync(type).pipe(map(val => val.isTrue()));