update readme

@@ -24,12 +24,13 @@ git clone https://code.csdn.net/winlinvip/srs-csdn.git
 中文资料(Wiki): [https://github.com/winlinvip/simple-rtmp-server/wiki](https://github.com/winlinvip/simple-rtmp-server/wiki) <br/>
 产品对比(Wiki): [https://github.com/winlinvip/simple-rtmp-server/wiki/Compare](https://github.com/winlinvip/simple-rtmp-server/wiki/Compare) <br/>
 使用步骤(Usage): [https://github.com/winlinvip/simple-rtmp-server#usage](#usage) <br/>
+公用机器(LiveShow): [https://github.com/winlinvip/simple-rtmp-server/wiki/LiveShow](供大家学习和使用的公用服务器) <br/>
 功能摘要(Summary): [https://github.com/winlinvip/simple-rtmp-server#summary](#summary) <br/>
 关于SRS(About): [https://github.com/winlinvip/simple-rtmp-server#about](#about) <br/>
 作者信息(Authors): [https://github.com/winlinvip/simple-rtmp-server#authors](#authors) <br/>
 更新历史(History): [https://github.com/winlinvip/simple-rtmp-server#history](#history) <br/>
 性能报告(Performance): [https://github.com/winlinvip/simple-rtmp-server#performance](#performance) <br/>
-发行分支(Releases): [https://github.com/winlinvip/simple-rtmp-server#releases](#releases) <br/>
+发行版本(Releases): [https://github.com/winlinvip/simple-rtmp-server#releases](#releases) <br/>
 横向对比(Compare): [https://github.com/winlinvip/simple-rtmp-server#compare](#compare) <br/>
 关键架构(Architecture): [https://github.com/winlinvip/simple-rtmp-server#architecture](#architecture)<br/>
 捐款(Donation): [http://winlinvip.github.io/srs.release/donation/index.html](http://winlinvip.github.io/srs.release/donation/index.html)