docs(angular): update zones content (#6920)

src/data/roadmaps/angular/content/zones@m4WBnx_9h01Jl6Q1sxi4Y.md

@@ -4,6 +4,9 @@ Zone.js is a signaling mechanism that Angular uses to detect when an application
 It captures asynchronous operations like setTimeout, network requests, and event listeners. 
 Angular schedules change detection based on signals from Zone.js.
 
+Visit the following resources to learn more:
+
 - [@official@Resolving zone pollution](https://angular.dev/best-practices/zone-pollution)
 - [@official@Angular without ZoneJS (Zoneless)](https://angular.dev/guide/experimental/zoneless)
 - [@official@NgZone - API](https://angular.dev/api/core/NgZone)
+- [@video@WTF is "Zone.js" and is it making your app slow?](https://www.youtube.com/watch?v=lmrf_gPIOZU)