Update README.md

Author: open-android

README.md

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 * 十分钟人人能学会开发开源中国
 
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-![](http://upload-images.jianshu.io/upload_images/4037105-8f9dc44300edb34c.gif?imageMogr2/auto-orient/strip)
+![](http://upload-images.jianshu.io/upload_images/4037105-2904aecba10fb30e.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
 
 ### 整个项目视频如下：