fix translation

shadowsocks-csharp/Data/cn.txt

@@ -75,7 +75,7 @@ No updates found. Please report to GFWList if you have problems with it.=未发
 No QRCode found. Try to zoom in or move it to the center of the screen.=未发现二维码，尝试把它放大或移动到靠近屏幕中间的位置
 Shadowsocks is already running.=Shadowsocks 已经在运行。
 Find Shadowsocks icon in your notify tray.=请在任务栏里寻找 Shadowsocks 图标。
-If you want to start multiple Shadowsocks, make a copy in another directory.=如果想同时启动多份，可以另外复制一份到别的目录。
+If you want to start multiple Shadowsocks, make a copy in another directory.=如果想同时启动多个，可以另外复制一份到别的目录。
 Failed to decode QRCode=无法解析二维码
 Failed to update registry=无法修改注册表
 System Proxy On: =系统代理已启用：