docs($animateCss): remove superfluous asterisk

Closes #12959

Author: Shrulik

src/ngAnimate/animateCss.js

@@ -202,7 +202,7 @@ var ANIMATE_TIMER_KEY = '$$animateCss';
  * * `stagger` - A numeric time value representing the delay between successively animated elements
  * ({@link ngAnimate#css-staggering-animations Click here to learn how CSS-based staggering works in ngAnimate.})
  * * `staggerIndex` - The numeric index representing the stagger item (e.g. a value of 5 is equal to the sixth item in the stagger; therefore when a
- * * `stagger` option value of `0.1` is used then there will be a stagger delay of `600ms`)
+ *   `stagger` option value of `0.1` is used then there will be a stagger delay of `600ms`)
  * * `applyClassesEarly` - Whether or not the classes being added or removed will be used when detecting the animation. This is set by `$animate` when enter/leave/move animations are fired to ensure that the CSS classes are resolved in time. (Note that this will prevent any transitions from occuring on the classes being added and removed.)
  * * `cleanupStyles` - Whether or not the provided `from` and `to` styles will be removed once
  *    the animation is closed. This is useful for when the styles are used purely for the sake of