Added page transition animation

Author: pinkeshmars

docs/ff-concepts/animations/animation_gifs/PageTransitionInstant.gif

@@ -1,15 +1,16 @@
 ---
+slug: animations
 title: Animations
 sidebar_position: 1
 description: Learn the basics of animations in FlutterFlow.
 ---
 
 Enhancing your app with animations significantly improves the user experience, making it more engaging and intuitive. In FlutterFlow, you have several options to add animations to your app:
 
-- **Widget Animations**: Add animation effects to an entire widget.
-- **Implicit Animations**: Animate changes in specific widget properties, such as the height of a Container.
-- **Hero Animations**: Animate a widget that transitions smoothly between screens, also known as shared element transitions.
-- **Page Transitions**: Specify transitions between pages within your app.
+- [**Widget Animations**](widget-animations): Add animation effects to an entire widget.
+- [**Implicit Animations**](implicit-animations): Animate changes in specific widget properties, such as the height of a Container.
+- [**Hero Animations**](hero-animations): Animate a widget that transitions smoothly between screens, also known as shared element transitions.
+- [**Page Transition Animations**](page-transition-animations): Specify transitions between pages within your app.
 - **Import Animations**: Import animations you've created using other tools such [lottiefiles](https://lottiefiles.com/) and [Rive](https://rive.app/).