Add lwmqwer as maintainer of OpenYurt (openyurtio#596)

MAINTAINERS.md

@@ -10,6 +10,7 @@ This file lists the maintainers of the OpenYurt project. The responsibilities of
 | [Shida Qiu](mailto:shida.qsd@alibaba-inc.com) | [SataQiu](https://github.com/SataQiu) | Alibaba |
 | [Chao Zheng](mailto:chao.zheng@bytedance.com) | [charleszheng44](https://github.com/charleszheng44) | ByteDance |
 | [Yixing Jia](mailto:yixingjia@gmail.com) | [yixingjia](https://github.com/yixingjia) | VMware |
+| [Wuming Liu](mailto:lwmqwer@163.com) | [lwmqwer](https://github.com/lwmqwer) | VMware |
 | [Shaoqiang Chen](mailto:shaoqiang.chen@intel.com) | [gnunu](https://github.com/gnunu) | Intel |
 | [Tao Chen](mailto:cchentaoct@163.com) | [qclc](https://github.com/qclc) | Zhejiang University |
-| [Lifang Zhang](mailto:379342542@qq.com) | [DrmagicE](https://github.com/DrmagicE) | China Telecom |
+| [Lifang Zhang](mailto:379342542@qq.com) | [DrmagicE](https://github.com/DrmagicE) | China Telecom |