Update README.md

Author: ffengc

README.md

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 # Reactor-based-HyperWebServer
-[简体中文](./info/README-cn.md)
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+**[简体中文](./info/README-cn.md)**
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 A high-performance web server based on the multiplexer actor mode, with an underlying implementation using the epoll model
 
 I will continue to update this project, continue to improve the backend and front-end issues, and create a complete project. So far, this project has completed the most basic backend construction and simple front-end construction.