Update zh.md
Update en.md
2048 game tutorial.
Merge pull request #367 from u0u0/master

2048 game tutorial.
Merge branch 'master' of https://github.com/joshuastray/cocos-docs

Conflicts:
	manual/framework/html5/v3/reflection/zh.md
Merge pull request #369 from u0u0/master

merge
Merge branch 'master' of https://github.com/chukong/cocos-docs