Update README.md

README.md

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 Because we're all a little absent-minded sometimes!
 Pops up a small notice when the site is in dev mode or if the site is in live mode and a default password is set in the config (both of which have potential security consequences)
 
+[![Build Status](https://scrutinizer-ci.com/g/DorsetDigital/silverstripe-devwarning/badges/build.png?b=master)](https://scrutinizer-ci.com/g/DorsetDigital/silverstripe-devwarning/build-status/master)
+[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/DorsetDigital/silverstripe-devwarning/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/DorsetDigital/silverstripe-devwarning/?branch=master)
+[![License](https://img.shields.io/badge/License-BSD%203--Clause-blue.svg)](LICENSE.md)
+[![Version](http://img.shields.io/packagist/v/dorsetdigital/silverstripe-devwarning.svg?style=flat)](https://packagist.org/packages/dorsetdigital/silverstripe-devwarning)
+
 
 # Requirements
 *Silverstripe 4.x