Merge pull request shadowsocks#295 from jlund/no-rc4

Use AES in the Usage example instead of RC4.

Author: clowwindy

README.md

@@ -28,11 +28,11 @@ See [Install Server on Windows]
 
 ### Usage
 
-    ssserver -p 443 -k password -m rc4-md5
+    ssserver -p 443 -k password -m aes-256-cfb
 
 To run in the background:
 
-    sudo ssserver -p 443 -k password -m rc4-md5 --user nobody -d start
+    sudo ssserver -p 443 -k password -m aes-256-cfb --user nobody -d start
 
 To stop: