update readme

Author: jeremykenedy

readme.md

@@ -2,6 +2,7 @@
 
 [![Total Downloads](https://poser.pugx.org/jeremykenedy/laravel-exception-notifier/d/total.svg)](https://packagist.org/packages/jeremykenedy/laravel-exception-notifier)
 [![Latest Stable Version](https://poser.pugx.org/jeremykenedy/laravel-exception-notifier/v/stable.svg)](https://packagist.org/packages/jeremykenedy/laravel-exception-notifier)
+[![Build Status](https://travis-ci.org/jeremykenedy/laravel-exception-notifier.svg?branch=master)](https://travis-ci.org/jeremykenedy/laravel-exception-notifier)
 [![StyleCI](https://github.styleci.io/repos/91833181/shield?branch=master)](https://github.styleci.io/repos/91833181)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)