添加 Switches 章节的所有图片
translate the text
Add images
improve the translation
Merge pull request #62 from marshluca/master

完成翻译 Subheaders
Merge remote-tracking branch 'upstream/master'
Merge pull request #64 from ZeroLu/master

Zero Lu's first version
完成 Switches（未全部完成）

- 两个视频没加
- 还有三句不知道如何翻译
修改进度：Switches
Merge pull request #65 from vincent4j/master

完成 Switches（未全部完成）
添加 Tabs 所有图片
添加视频规范
Merge pull request #66 from IceskYsl/master

添加视频规范
translated buttons chapter in components
Merge pull request #68 from vincent4j/master

添加 Tabs 所有图片
Merge pull request #67 from 7heaven/master

translated buttons chapter in components
Merge remote-tracking branch 'upstream/master'
添加视频链接