2.7.5 服务自省特性如何使用，有没有文档

服务自省的特性，虽然有博客说明原理和机制,可是我找不到，如何使用的文档。
怎么在provider 注册时开启服务自省。
希望能给一个基于2.7.5 以后的demo，或者文档说明。

Start by locating the existing service-introspection and provider-registration documentation in the dubbo-website repository, then verify the usage described for Dubbo 2.7.5 and later. Done means the site includes a usable explanation or demo showing how to enable service introspection during provider registration.

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