docs(github): Replace CI badge

Author: jayfreestone

README.md

@@ -1,6 +1,6 @@
 # priorityPlus
 
-![Travis build status](https://img.shields.io/travis/com/jayfreestone/priority-plus.svg?style=flat-square)
+![Github build status](https://github.com/jayfreestone/priority-plus/actions/workflows/release.yml/badge.svg)
 ![npm](https://img.shields.io/npm/v/priority-plus.svg?color=%234263eb&style=flat-square)
 ![npm bundle size](https://img.shields.io/bundlephobia/minzip/priority-plus.svg?color=%234263eb&style=flat-square)
 [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg?style=flat-square)](https://github.com/semantic-release/semantic-release)