Update README_zh-CN.md (#1545) (#1546)

remove repeat net/http

Co-authored-by: tzxdtc10 <[email protected]>

Author: ubogdan

README_zh-CN.md

@@ -120,7 +120,6 @@ OPTIONS:
 - [echo](http://github.com/swaggo/echo-swagger)
 - [buffalo](https://github.com/swaggo/buffalo-swagger)
 - [net/http](https://github.com/swaggo/http-swagger)
-- [net/http](https://github.com/swaggo/http-swagger)
 - [gorilla/mux](https://github.com/swaggo/http-swagger)
 - [go-chi/chi](https://github.com/swaggo/http-swagger)
 - [flamingo](https://github.com/i-love-flamingo/swagger)