docs: add browser extension link

README.md

@@ -92,6 +92,10 @@ use `go install`:
 go install github.com/GopeedLab/gopeed/cmd/gopeed@latest
 ```
 
+## Browser Extension
+
+Gopeed also provides a browser extension to take over browser downloads, supporting browsers such as Chrome, Edge, Firefox, etc., please refer to: [https://github.com/GopeedLab/browser-extension](https://github.com/GopeedLab/browser-extension)
+
 ## Donate
 
 If you like this project, please consider [donating](https://docs.gopeed.com/donate.html) to support the development of this project, thank you!

README_zh-CN.md

@@ -92,6 +92,10 @@ Gopeed（全称 Go Speed），直译过来中文名叫做`够快下载器`（不
 go install github.com/GopeedLab/gopeed/cmd/gopeed@latest
 ```
 
+## 浏览器扩展
+
+Gopeed 还提供了浏览器扩展用于接管浏览器下载，支持 Chrome、Edge、Firefox 等浏览器，具体请参考：[https://github.com/GopeedLab/browser-extension](https://github.com/GopeedLab/browser-extension)
+
 ## 赞助
 
 如果觉得项目对你有帮助，请考虑[赞助](https://docs.gopeed.com/zh/donate)以支持这个项目的发展，非常感谢！