spelling: transitions

Author: jsoref

CHANGELOG.md

@@ -9821,7 +9821,7 @@ There are no breaking changes in this release (promise!)
   - ensure transition-property is not changed when only keyframe animations are in use
   ([2df3c9f5](https://github.com/angular/angular.js/commit/2df3c9f58def9584455f7c4bfdabbd12aab58bf9),
    [#3933](https://github.com/angular/angular.js/issues/3933))
-  - avoid completing the animation asynchronously unless CSS transtiions/animations are present
+  - avoid completing the animation asynchronously unless CSS transitions/animations are present
   ([2a63dfa6](https://github.com/angular/angular.js/commit/2a63dfa6cc7889888f4296fff2944e74ff30b3af),
    [#4023](https://github.com/angular/angular.js/issues/4023),
    [#3940](https://github.com/angular/angular.js/issues/3940))