Updated jsdocs

Author: photonstorm

src/gameobjects/components/Animation.js

@@ -504,7 +504,7 @@ var Animation = new Class({
      * @since 3.0.0
      *
      * @param {(string|Phaser.Animations.Animation)} key - The string-based key of the animation to play, as defined previously in the Animation Manager. Or an Animation instance.
-     * @param {boolean} [ignoreIfPlaying=false] - If an animation is already playing then ignore this call.
+     * @param {boolean} [ignoreIfPlaying=false] - If this animation is already playing then ignore this call.
      * @param {integer} [startFrame=0] - Optionally start the animation playing from this frame index.
      *
      * @return {Phaser.GameObjects.GameObject} The Game Object that owns this Animation Component.