add chenfu as maintainer
@@ -22,6 +22,7 @@ Name | Email | Focus
Name | Email | Focus
----|---|---
[Xiaoguang Sun](https://github.com/sunxiaoguang) | [sunxiaoguang@zhihu.com](mailto:sunxiaoguang@zhihu.com) | Focus Areas: Client, Storage
+[Fu Chen](https://github.com/fredchenbj) | [cfworking1990@gmail.com](mailto:cfworking1990@gmail.com) | Focus Areas: Storage, Performance
# Maintaining Organizations
