add style ci

Author: freekmurze

README.md

@@ -5,6 +5,7 @@
 [![Build Status](https://img.shields.io/travis/spatie/laravel-failed-job-monitor/master.svg?style=flat-square)](https://travis-ci.org/spatie/laravel-failed-job-monitor)
 [![SensioLabsInsight](https://img.shields.io/sensiolabs/i/f2aaa07e-2960-4ed5-a130-626e990fef3f.svg?style=flat-square)](https://insight.sensiolabs.com/projects/f2aaa07e-2960-4ed5-a130-626e990fef3f)
 [![Quality Score](https://img.shields.io/scrutinizer/g/spatie/laravel-failed-job-monitor.svg?style=flat-square)](https://scrutinizer-ci.com/g/spatie/laravel-failed-job-monitor)
+[![StyleCI](https://styleci.io/repos/52006263/shield)](https://styleci.io/repos/52006263)
 [![Total Downloads](https://img.shields.io/packagist/dt/spatie/laravel-failed-job-monitor.svg?style=flat-square)](https://packagist.org/packages/spatie/laravel-failed-job-monitor)
 
 This package sends notifications if a queued job fails. Out of the box it can send a notification via mail and/or Slack.