Added WriteFreely to CMS list

README.md

@@ -559,6 +559,7 @@ CMS are a practical way to setup a website with many features. CMS often come wi
 - [Wagtail](https://wagtail.io/) - Django content management system focused on flexibility and user experience. ([Source Code](https://github.com/wagtail/wagtail)) `BSD-3-Clause` `Python`
 - [WonderCMS](http://www.wondercms.com) - WonderCMS is the smallest flat file CMS since 2008. ([Demo](https://www.wondercms.com/demo), [Source Code](https://github.com/robiso/wondercms)) `MIT` `PHP`
 - [WordPress](https://wordpress.org/) - World's most-used blogging and CMS engine. ([Source Code](https://github.com/WordPress/WordPress)) `GPL-2.0` `PHP`
+- [Writefreely](https://writefreely.org) - Writing software for starting a minimalist, federated blog — or an entire community. ([Source Code](https://github.com/writeas/writefreely)) `AGPL 3.0` `Go`
 
 _Recipe management_