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 <div align=center>
  <img src="logo.jpg"/>
  <h2>一个各行业都适用的分布式在线教育系统</h2>
- <a href="http://edu.doc.roncoos.com/"><strong>领课教育系统-开源版-项目文档</strong></a>
+ <a href="http://doc.os.roncoos.com/"><strong>领课教育系统-开源版-项目文档</strong></a>
 </div>
 
 ##### 领课教育系统(roncoo-education)：[码云地址](https://gitee.com/roncoocom/roncoo-education) | [Github地址](https://github.com/roncoo/roncoo-education)