Merge pull request #1600 from SebastianStehle/patch-2

Added Squidex CMS

README.md

@@ -538,6 +538,7 @@ CMS are a practical way to setup a website with many features. CMS often come wi
 - [SilverStripe](https://www.silverstripe.org) - Easy to use CMS with powerful MVC framework underlying. ([Demo](http://demo.silverstripe.org/), [Source Code](https://github.com/silverstripe)) `BSD-3-Clause` `PHP`
 - [Sphido](http://www.sphido.org/) - Fast, lightweight, flat file CMS for PHP. ([Source Code](https://github.com/sphido/cms)) `MIT` `PHP`
 - [SPIP](http://www.spip.net/fr) - Publication system for the Internet aimed at collaborative work, multilingual environments, and simplicity of use for web authors. ([Source Code](https://core.spip.net/projects/spip/repository)) `GPL-2.0` `PHP`
+- [Squidex](http://squidex.io) - Headless CMS, based on MongoDB, CQRS and Event Sourcing. ([Demo](http://cloud.squidex.io), [Source Code](https://github.com/Squidex/squidex)) `MIT` `.NET`
 - [Strapi](https://strapi.io/) - The most advanced open-source Content Management Framework (headless-CMS) to build powerful API with no effort. ([Source Code](https://github.com/strapi/strapi/)) `MIT` `Nodejs`
 - [Subrion](http://www.subrion.org) - Subrion is a free open source content management system that allows you to build websites for any purpose. Yes, from blog to corporate mega portal. ([Demo](http://demos.subrion.com), [Source Code](https://github.com/intelliants/subrion)) `GPL-3.0` `PHP`
 - [Textpattern](http://textpattern.com/) - Flexible, elegant and easy-to-use CMS. ([Demo](http://textpattern.co/demo), [Source Code](https://github.com/textpattern/textpattern)) `GPL-2.0` `PHP`