docs(): update usage and examples

core/src/components/animation-controller/animation-controller.tsx

@@ -8,6 +8,9 @@ import { Animator } from './animator';
 })
 export class AnimationControllerImpl implements AnimationController {
 
+  /**
+   * Creates an animation instance
+   */
   @Method()
   create(animationBuilder?: AnimationBuilder, baseEl?: any, opts?: any): Promise<Animation> {
     if (animationBuilder) {

core/src/components/animation-controller/readme.md

@@ -1,5 +1,7 @@
 # ion-animation-controller
+Internal to `ionic/core`.
 
+Used to create an animation instance.
 
 
 <!-- Auto Generated Below -->
@@ -9,6 +11,8 @@
 
 #### create()
 
+Creates an animation instance
+
 
 
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