Merge pull request tangqi92#12 from nitta-honoka/master

GIT部分添加两条链接

Author: tangqi92

README.md

@@ -513,7 +513,9 @@
 2. [GitHub秘籍](http://snowdream86.gitbooks.io/github-cheat-sheet/content/zh/index.html)
 3. [git - 简易指南](http://www.bootcss.com/p/git-guide/)
 4. [基于Github参与开源项目指南](http://yeungeek.com/2015/07/01/%E5%9F%BA%E4%BA%8EGithub%E5%8F%82%E4%B8%8E%E5%BC%80%E6%BA%90%E9%A1%B9%E7%9B%AE%E6%8C%87%E5%8D%97/)
-5. [使用git和github进行协同开发流程](http://livoras.com/post/28)
+5. [使用git和github进行协同开发流程](http://livoras.com/post/28)  
+6. [如何高效利用GitHub](http://www.yangzhiping.com/tech/github.html#q1)  
+7. [廖雪峰的GIT入门教程](http://www.liaoxuefeng.com/wiki/0013739516305929606dd18361248578c67b8067c8c017b000)
 
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