Update README.md

Author: donatj

README.md

@@ -1,6 +1,7 @@
 # Mod Rewrite Rule Generator
 
 [![Build Status](https://travis-ci.org/donatj/RewriteRule-Generator.svg?branch=master)](https://travis-ci.org/donatj/RewriteRule-Generator)
+![CI](https://github.com/donatj/RewriteRule-Generator/workflows/CI/badge.svg)
 [![Latest Stable Version](https://poser.pugx.org/donatj/rewrite-generator/v/stable)](https://packagist.org/packages/donatj/rewrite-generator)
 [![License](https://poser.pugx.org/donatj/rewrite-generator/license)](https://packagist.org/packages/donatj/rewrite-generator)