Refine traditional Chinese translation (#716)

shadowsocks-csharp/Data/zh_tw.txt

@@ -89,7 +89,7 @@ Please input PAC Url=請輸入 PAC 網址
 Shadowsocks Error: {0}=Shadowsocks 錯誤: {0}
 Port already in use=連接埠號碼已被占用
 Illegal port number format=非法連接埠號碼格式
-Please add at least one server=請新增至少壹個伺服器
+Please add at least one server=請新增至少一個伺服器
 Server IP can not be blank=伺服器 IP 不能為空
 Password can not be blank=密碼不能為空
 Port out of range=連接埠號碼超出範圍
@@ -107,7 +107,7 @@ No updates found. Please report to GFWList if you have problems with it.=未發
 No QRCode found. Try to zoom in or move it to the center of the screen.=未發現 QR 碼，嘗試把它放大或移動到靠近屏幕中間的位置
 Shadowsocks is already running.=Shadowsocks 已經在運行。
 Find Shadowsocks icon in your notify tray.=請在工作列裏尋找 Shadowsocks 圖標。
-If you want to start multiple Shadowsocks, make a copy in another directory.=如果想同時啟動多個，可以另外復制壹份到別的目錄。
+If you want to start multiple Shadowsocks, make a copy in another directory.=如果想同時啟動多個，可以另外復制一份到別的目錄。
 Failed to decode QRCode=無法解析 QR 碼
 Failed to update registry=無法修改登錄檔
 System Proxy On: =系統代理已啟用：