Update README.md

Author: afc163

README.md

@@ -7,8 +7,9 @@ React Select
 [![NPM version][npm-image]][npm-url]
 [![npm download][download-image]][download-url]
 [![build status][github-actions-image]][github-actions-url]
-[![Test coverage][codecov-image]][codecov-url]
+[![Codecov][codecov-image]][codecov-url]
 [![bundle size][bundlephobia-image]][bundlephobia-url]
+[![dumi][dumi-image]][dumi-url]
 
 [npm-image]: http://img.shields.io/npm/v/rc-select.svg?style=flat-square
 [npm-url]: http://npmjs.org/package/rc-select
@@ -26,6 +27,8 @@ React Select
 [download-url]: https://npmjs.org/package/rc-select
 [bundlephobia-url]: https://bundlephobia.com/package/rc-select
 [bundlephobia-image]: https://badgen.net/bundlephobia/minzip/rc-select
+[dumi-url]: https://github.com/umijs/dumi
+[dumi-image]: https://img.shields.io/badge/docs%20by-dumi-blue?style=flat-square
 
 ## Screenshots