update readme, add qq group.

README.md

@@ -140,9 +140,7 @@ h.264 raw stream(
 WebSite: [http://ossrs.net](http://ossrs.net) <br/>
 Release: [http://winlinvip.github.io/srs.release](http://winlinvip.github.io/srs.release)  <br/>
 Blog: [http://blog.csdn.net/win_lin](http://blog.csdn.net/win_lin)  <br/>
-CSDN mirror: [https://code.csdn.net/winlinvip/srs-csdn](https://code.csdn.net/winlinvip/srs-csdn) <br/>
+QQ Group: [365936885, by wenjie](http://jq.qq.com/?_wv=1027&k=SvTiJl) <br/>
-See also: [https://github.com/winlinvip/simple-rtmp-server](https://github.com/winlinvip/simple-rtmp-server)  <br/>
-Github DEMO: [demo with your SRS](http://winlinvip.github.io/srs.release/trunk/research/players/srs_player.html?server=192.168.1.170&vhost=192.168.1.170)  <br/>
 Wiki: [https://github.com/winlinvip/simple-rtmp-server/wiki](https://github.com/winlinvip/simple-rtmp-server/wiki)  <br/>
 StreamServers：[BLS](https://github.com/wenjiegit/Bull-Live-Server)/[BLE](https://github.com/wenjiegit/Bull-Live-Encoder), 
 [NGINX-RTMP](https://github.com/arut/nginx-rtmp-module), [CRTMPD](http://www.rtmpd.com/),