chore(docs): add Github Actions test badge to the README

README.md

@@ -6,6 +6,7 @@
 [![Standard - JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](http://standardjs.com/)
 
 <!-- Build status and code analysis -->
+![Tests](https://github.com/thumbsup/thumbsup/workflows/test/badge.svg)
 [![Travis CI](https://travis-ci.org/thumbsup/thumbsup.svg?branch=master)](https://travis-ci.org/thumbsup/thumbsup)
 [![Docker Hub](https://img.shields.io/docker/build/thumbsupgallery/thumbsup.svg)](https://hub.docker.com/r/thumbsupgallery/thumbsup)
 [![Dependencies](http://img.shields.io/david/thumbsup/thumbsup.svg?style=flat)](https://david-dm.org/thumbsup/thumbsup)