Update README.md (#20477)

Author: jareguo

README.md

@@ -199,6 +199,10 @@ Contact us
    * Twitter: [http://www.twitter.com/cocos2dx][10]
    * Weibo: [http://t.sina.com.cn/cocos2dx][11]
 
+Want an awesome editor?
+--------------------------------
+[Cocos Creator][12] is the new generation of Cocos game engine with a full featured editor and content creation friendly workflow. It supports all major platforms allowing games to be quickly released for the web, iOS, Android, Windows, Mac, and various mini-game platforms. A pure JavaScript-developed engine runtime is available on the web and mini-game platforms for better performance and smaller packages. On other native platforms, C++ is used to implement the underlying framework, providing greater operational efficiency. The engine is completely [open source][13], and retains the advantages of Cocos2d-x which includes high performance, customizability, ease for debugging, easy to learn, and small package size.
+
 [1]: http://www.cocos2d-x.org "cocos2d-x"
 [4]: http://www.cocos2d-x.org/download/version#Cocos2d-x
 [5]: http://www.box2d.org "Box2D"
@@ -208,3 +212,5 @@ Contact us
 [9]: http://discuss.cocos2d-x.org "http://discuss.cocos2d-x.org"
 [10]: http://www.twitter.com/cocos2dx "http://www.twitter.com/cocos2dx"
 [11]: http://t.sina.com.cn/cocos2dx "http://t.sina.com.cn/cocos2dx"
+[12]: https://www.cocos.com/en/products#CocosCreator
+[13]: https://github.com/cocos-creator/engine