修改介绍

README.md

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 # Discovery【探索】架构篇
 [![Total lines](https://tokei.rs/b1/github/Nepxion/Discovery?category=lines)](https://tokei.rs/b1/github/Nepxion/Discovery?category=lines)  [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg?label=license)](https://github.com/Nepxion/Discovery/blob/master/LICENSE)  [![Maven Central](https://img.shields.io/maven-central/v/com.nepxion/discovery.svg?label=maven%20central)](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22com.nepxion%22%20AND%20discovery)  [![Javadocs](http://www.javadoc.io/badge/com.nepxion/discovery-plugin-framework.svg)](http://www.javadoc.io/doc/com.nepxion/discovery-plugin-framework)  [![Build Status](https://travis-ci.org/Nepxion/Discovery.svg?branch=master)](https://travis-ci.org/Nepxion/Discovery)  [![Codacy Badge](https://api.codacy.com/project/badge/Grade/8e39a24e1be740c58b83fb81763ba317)](https://www.codacy.com/project/HaojunRen/Discovery/dashboard?utm_source=github.com&utm_medium=referral&utm_content=Nepxion/Discovery&utm_campaign=Badge_Grade_Dashboard)
 
-![](http://nepxion.gitee.io/docs/icon-doc/information.png) Discovery【探索】指南篇，**务必先阅读**，请访问 
+![](http://nepxion.gitee.io/docs/icon-doc/information.png) Discovery【探索】指南篇，**务必先阅读**，请访问
 - 对于入门级玩家，参考[指南示例极简版](https://github.com/Nepxion/DiscoveryGuide/tree/simple)获取，分支为simple。涉及到指南篇里的灰度发布和路由的基本功能
 - 对于熟练级玩家，参考[指南示例精进版](https://github.com/Nepxion/DiscoveryGuide/tree/master)获取，分支为master。除上述《极简版》功能外，涉及到指南篇里的绝大多数高级功能
 - 对于骨灰级玩家，参考[指南示例高级版](https://github.com/Nepxion/DiscoveryGuide/tree/premium)获取，分支为premium。除上述《精进版》功能外，涉及到指南篇里的ActiveMQ、MongoDB、RabbitMQ、Redis、RocketMQ、MySQL等高级调用链和灰度调用链的整合