Fix build badge (#1818)

Author: nickserv

README.md

@@ -3,7 +3,7 @@
 Official React bindings for [Redux](https://github.com/reduxjs/redux).  
 Performant and flexible.
 
-![GitHub Workflow Status](https://img.shields.io/github/workflow/status/reduxjs/react-redux/CI?style=flat-square) [![npm version](https://img.shields.io/npm/v/react-redux.svg?style=flat-square)](https://www.npmjs.com/package/react-redux)
+![GitHub Workflow Status](https://img.shields.io/github/workflow/status/reduxjs/react-redux/Tests?style=flat-square) [![npm version](https://img.shields.io/npm/v/react-redux.svg?style=flat-square)](https://www.npmjs.com/package/react-redux)
 [![npm downloads](https://img.shields.io/npm/dm/react-redux.svg?style=flat-square)](https://www.npmjs.com/package/react-redux)
 [![redux channel on discord](https://img.shields.io/badge/discord-redux@reactiflux-61DAFB.svg?style=flat-square)](http://www.reactiflux.com)