docs(angular): add animation content (#6420)

src/data/roadmaps/angular/content/animation@rYJq59Q0YdfK6n3x740Em.md

@@ -1 +1,10 @@
-# Animation
+# Animation
+
+Angular's animation system is built on CSS functionality, which means you can animate any property that the browser considers animatable. This includes positions, sizes, transforms, colors, borders, and more.
+
+Visit the following resources to learn more:
+
+- [@official@Angular Official Docs - Animation](https://angular.dev/guide/animations)
+- [@article@Angular Animations - A Beginner's Guide](https://www.angularminds.com/blog/angular-animations-a-beginners-guide)
+- [@opensource@Angular Animations Explorer](https://github.com/williamjuan027/angular-animations-explorer)
+- [@article@In-Depth guide into animations in Angular](https://angularindepth.com/posts/1285/in-depth-guide-into-animations-in-angular)