扩展适配页面链接都不生效

https://cn.dubbo.apache.org/zh-cn/overview/what/core-features/extensibility/ 这个页面最下面的自定义扩展示例链接比如：
自定义RPC协议：https://cn.dubbo.apache.org/zh-cn/overview/what/tasks/extensibility/protocol/
自定义流量路由规则：https://cn.dubbo.apache.org/zh-cn/overview/what/tasks/extensibility/router/
都失效了

Open the extensibility page and check the links for the custom RPC protocol and custom traffic-routing examples. Locate the corresponding source entries in the website, update the broken destinations, and verify that both links resolve correctly from the published page.

Written by the indexing model from the issue text.