doc: Update README.md

Author: jaywcjlove

README.md

@@ -2,12 +2,13 @@ React Markdown Preview
 ===
 <!--dividing-->
 
-[![](https://img.shields.io/github/issues/uiwjs/react-markdown-preview.svg)](https://github.com/uiwjs/react-markdown-preview/issues)
-[![](https://img.shields.io/github/forks/uiwjs/react-markdown-preview.svg)](https://github.com/uiwjs/react-markdown-preview/network)
-[![](https://img.shields.io/github/stars/uiwjs/react-markdown-preview.svg)](https://github.com/uiwjs/react-markdown-preview/stargazers)
-[![](https://img.shields.io/github/release/uiwjs/react-markdown-preview)](https://github.com/uiwjs/react-markdown-preview/releases)
-[![](https://img.shields.io/npm/v/@uiw/react-markdown-preview.svg)](https://www.npmjs.com/package/@uiw/react-markdown-preview)
-[![](https://img.shields.io/badge/Open%20in-unpkg-blue)](https://uiwjs.github.io/npm-unpkg/#/pkg/@uiw/react-markdown-preview/file/README.md)
+[![Downloads](https://img.shields.io/npm/dm/@uiw/react-markdown-preview.svg?style=flat)](https://www.npmjs.com/package/@uiw/react-markdown-preview)
+[![Issues](https://img.shields.io/github/issues/uiwjs/react-markdown-preview.svg)](https://github.com/uiwjs/react-markdown-preview/issues)
+[![Forks](https://img.shields.io/github/forks/uiwjs/react-markdown-preview.svg)](https://github.com/uiwjs/react-markdown-preview/network)
+[![Stars](https://img.shields.io/github/stars/uiwjs/react-markdown-preview.svg)](https://github.com/uiwjs/react-markdown-preview/stargazers)
+[![Release](https://img.shields.io/github/release/uiwjs/react-markdown-preview)](https://github.com/uiwjs/react-markdown-preview/releases)
+[![npm version](https://img.shields.io/npm/v/@uiw/react-markdown-preview.svg)](https://www.npmjs.com/package/@uiw/react-markdown-preview)
+[![npm unpkg](https://img.shields.io/badge/Open%20in-unpkg-blue)](https://uiwjs.github.io/npm-unpkg/#/pkg/@uiw/react-markdown-preview/file/README.md)
 
 React component preview markdown text in web browser. The minimal amount of CSS to replicate the GitHub Markdown style. The current [document website](https://uiwjs.github.io/react-markdown-preview/) is converted using this react component.