修改介绍

README.md

@@ -2,7 +2,7 @@
 [![Total lines](https://tokei.rs/b1/github/Nepxion/Discovery?category=lines)](https://github.com/Nepxion/Discovery)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg?label=license)](https://github.com/Nepxion/Discovery/blob/master/LICENSE)
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-[![Javadocs](http://www.javadoc.io/badge/com.nepxion/discovery.svg)](http://www.javadoc.io/doc/com.nepxion/discovery)
+[![Javadocs](http://www.javadoc.io/badge/com.nepxion/discovery-plugin-framework.svg)](http://www.javadoc.io/doc/com.nepxion/discovery-plugin-framework)
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