Add EspoCRM

README.md

@@ -780,6 +780,7 @@ _Command-line file upload_
 - [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`
 - [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/) - EspoCRM is an Open Source CRM with a frontend designed as a single page application based on backbone.js and a REST API backend written in PHP. ([Demo](http://demo.espocrm.de/basic/), [Source Code](https://github.com/espocrm/espocrm)) `GPL-3.0` `PHP`
 - [Horde](http://www.horde.org/) - The Horde Project is about creating high quality Open Source applications and libraries, based on PHP and the Horde Framework. ([Demo](http://demo.horde.org/login.php), [Source Code](https://github.com/horde/horde)) `GPL-2.0` `PHP`
 - [HRCloud2](https://www.honestrepair.net/index.php/hrcloud2/) - Full-featured home hosted Cloud Drive, Personal Assistant, App Launcher, File Converter, Streamer, Share Tool and more. ([Source Code](https://github.com/zelon88/HRCloud2)) `GPL-3.0` `PHP`
 - [Kolab](https://kolab.org/) - Kolab community is a unified communication and collaboration system. ([Source Code](https://git.kolab.org/)) `GPL-2.0/LGPL-2.1/GPL-3.0` `C++/Python/PHP`