Merge pull request #1 from cocos2d/master

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Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
Some descriptions about cocos2d-html5 3.0 .
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Some descriptions about cocos2d-html5 3.0 .
Merge branch 'master' of https://github.com/cocos2d/cocos-docs into h5_api_3.0
Some descriptions about cocos2d-html5 3.0 .
Update zh.md