Doc: Deadlink for brpc.baidu.com:8765

[mapleFU]

Is your feature request related to a problem? (你需要的功能是否与某个问题有关?)

No

Describe the solution you'd like (描述你期望的解决方法)

Solve the deadlink?

Describe alternatives you've considered (描述你想到的折衷方案)

Use https://brpc.apache.org/ ?

Additional context/screenshots (更多上下文/截图)

https://github.com/search?q=repo%3Aapache%2Fbrpc+brpc.baidu.com&type=code

[Huixxi]

@serverglen 这个帅哥看看有办法修一下么，是不是部署在了一台内部的服务器上？

[wwbmmm]

要不把这个链接去掉？让用户本地起一个server，然后把文档里的brpc.baidu.com改成localhost