Update README.md

Add CraftCMS to the list of Content Management Systems

README.md

@@ -365,6 +365,7 @@ CMS are a practical way to setup a website with many features. CMS often come wi
   * [Bolt](https://bolt.cm/) - Sophisticated, lightweight & simple CMS. ([Source Code](https://github.com/bolt/bolt)) `MIT` `PHP`
   * [CMS Made Simple](http://www.cmsmadesimple.org/) - Open source content management system, faster and easier management of website contents, scalable for small businesses to large corporations. ([Source Code](http://svn.cmsmadesimple.org/svn/cmsmadesimple/trunk/)) `GPL` `PHP`
   * [Concrete 5 CMS](http://www.concrete5.org/) - An open source content management system. ([Source Code](https://github.com/concrete5/concrete5)) `MIT` `PHP`
+  * [CraftCMS](https://craftcms.com/) - Craft is a content-first CMS that aims to make life enjoyable for developers and content managers alike. `⚠` `PHP`
   * [Drupal](https://www.drupal.org/) - Advanced open source content management platform. ([Source Code](http://cgit.drupalcode.org/drupal)) `GPL` `PHP`
   * [eLabFTW](http://www.elabftw.net) - An online lab notebook for research labs. Store experiments, use a database to find reagents or protocols, use trusted timestamping to legally timestamp an experiment, export as pdf or zip archive, share with collaborators…. ([Source Code](https://github.com/elabftw/elabftw), [Demo](https://demo.elabftw.net)) `AGPLv3` `PHP`
   * [Gazelle](https://github.com/WhatCD/Gazelle) - Gazelle is a web framework geared towards private BitTorrent trackers. Although naturally focusing on music, it can be modified for most needs. `unlicensed` `PHP`