Update README.md

Author: sequoiar

README.md

@@ -73,8 +73,8 @@ In top directory:
 
 
 ### Support us
-* scan QRcode to follow our WeChat(云瓜桌面) 
-* ![云瓜云](https://github.com/InstantWebP2P/peer-vnc/blob/master/cloudgua.jpg)
+* scan QRcode to follow our WeChat
+* ![云瓜云](https://avatars2.githubusercontent.com/u/225268?v=3&u=619fd9c604818ce67e4684a853a5dfb996360750&s=400)
 * 远程工作云办公联盟 QQ 群号: 463651269