Add Corteza

README.md

@@ -826,6 +826,7 @@ _Games, game servers and control panels._
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 - [Citadel](http://www.citadel.org/doku.php) - Groupware including email, calendar/scheduling, address books, forums, mailing lists, IM, wiki and blog engines, RSS aggregation and more. ([Source Code](http://www.citadel.org/doku.php/installation:source)) `GPL-3.0` `C`
+- [Corteza](https://cortezaproject.org) - CRM including a unified workspace, enterprise messaging and a low code environment for rapidly and securely delivering records-based management solutions. ([Demo](https://latest.cortezaproject.org) , [Source Code](https://github.com/cortezaproject/corteza-server)) `Apache-2.0` `Go`
 - [Cozy Cloud](https://cozy.io) - Personal cloud where you can read your emails or manage and sync your contact, files or calendars, with an app store full of community contributions. ([Source Code](https://github.com/cozy)) `GPL-3.0` `Nodejs`
 - [egroupware](http://www.egroupware.org/) - Software suite including calendars, address books, notepad, project management tools, client relationship management tools (CRM), knowledge management tools, a wiki and a CMS. ([Source Code](https://github.com/EGroupware/egroupware)) `GPL-2.0` `PHP`
 - [EspoCRM](https://www.espocrm.com/) - CRM with a frontend designed as a single page application, and a REST API. ([Demo](http://demo.espocrm.de/basic/), [Source Code](https://github.com/espocrm/espocrm)) `GPL-3.0` `PHP`