docs: update Coverage status badge

Author: panz3r

README.md

@@ -2,7 +2,7 @@
 
 > Simplify your Auth flow when working with React apps
 
-[![license](https://img.shields.io/github/license/Forward-Software/react-auth.svg)](https://github.com/Forward-Software/react-auth/blob/main/LICENSE) [![CI](https://github.com/Forward-Software/react-auth/actions/workflows/main.yml/badge.svg)](https://github.com/Forward-Software/react-auth/actions/workflows/main.yml) [![Language grade: JavaScript](https://img.shields.io/lgtm/grade/javascript/g/Forward-Software/react-auth.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/Forward-Software/react-auth/context:javascript) ![Coveralls](https://img.shields.io/coveralls/github/Forward-Software/react-auth) [![Github Issues](https://img.shields.io/github/issues/Forward-Software/react-auth.svg)](https://github.com/Forward-Software/react-auth/issues)
+[![license](https://img.shields.io/github/license/Forward-Software/react-auth.svg)](https://github.com/Forward-Software/react-auth/blob/main/LICENSE) [![CI](https://github.com/Forward-Software/react-auth/actions/workflows/main.yml/badge.svg)](https://github.com/Forward-Software/react-auth/actions/workflows/main.yml) [![Language grade: JavaScript](https://img.shields.io/lgtm/grade/javascript/g/Forward-Software/react-auth.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/Forward-Software/react-auth/context:javascript) [![Coverage Status](https://coveralls.io/repos/github/Forward-Software/react-auth/badge.svg?branch=main)](https://coveralls.io/github/Forward-Software/react-auth?branch=main) [![Github Issues](https://img.shields.io/github/issues/Forward-Software/react-auth.svg)](https://github.com/Forward-Software/react-auth/issues)
 
 [![npm](https://img.shields.io/npm/v/@forward-software/react-auth)](https://npmjs.com/package/@forward-software/react-auth) [![NPM downloads](https://img.shields.io/npm/dm/@forward-software/react-auth.svg)](https://npmjs.com/package/@forward-software/react-auth)