doc: Update README.md

Author: jaywcjlove

README.md

@@ -6,6 +6,7 @@ React 中文文档 for [Docker](https://hub.docker.com/r/wcjiang/zh-hans.react.d
 [![Docker Image Version (latest by date)](https://img.shields.io/docker/v/wcjiang/zh-hans.react.dev)](https://hub.docker.com/r/wcjiang/zh-hans.react.dev)
 [![Docker Image Size (latest by date)](https://img.shields.io/docker/image-size/wcjiang/zh-hans.react.dev)](https://hub.docker.com/r/wcjiang/zh-hans.react.dev)
 [![Docker Pulls](https://img.shields.io/docker/pulls/wcjiang/zh-hans.react.dev)](https://hub.docker.com/r/wcjiang/zh-hans.react.dev)
+[![GitHub last commit](https://img.shields.io/github/last-commit/jaywcjlove/zh-hans.react.dev-for-docker?style=flat&label=zh-hans.react.dev)](https://github.com/jaywcjlove/zh-hans.react.dev-for-docker/commits)
 <!--rehype:ignore:end-->
 
 新 [React 中文文档](https://zh-hans.react.dev/) docker 版本，方便本地[部署](https://github.com/reactjs/zh-hans.react.dev)查看文档