Update 2-1.md

Author: walkor

resource/doc/zh-cn/upgrade/2-1.md

@@ -43,6 +43,11 @@ composer require -W webman/think-orm:~2.1
 composer require -W webman/think-cache:~2.1
 ```
 
+* webman/redis-queue
+```
+composer require -W webman/redis-queue:~2.1
+```
+
 * webman/log
 ```
 composer require -W webman/log:~2.1