Introduce new HRM category (#427)

* Adds new HRM category
* Adds IceHrm
* Adds OrangeHRM
* Adds Sentrifugo

README.md

@@ -47,6 +47,7 @@ See [Contributing](.github/CONTRIBUTING.md).
   - [Games](#games)
   - [Gateways](#gateways)
   - [Groupware](#groupware)
+  - [Human Recources Management (HRM)](#human-recources-management-hrm)
   - [Learning and Courses](#learning-and-courses)
   - [Maps & GPS](#maps--gps)
   - [Media Streaming](#media-streaming)
@@ -652,6 +653,15 @@ See https://github.com/n1trux/awesome-sysadmin#distributed-filesystems
   * [Zimbra Collaboration](https://www.zimbra.com/downloads/) - Email, calendar, collaboration server with web interface and lots of integrations. ([Source Code](https://git.zimbra.com/repos/zimbra-foss/)) `GPLv2/CPALv1` `Java`
 
 
+## Human Recources Management (HRM)
+
+**[`^        back to top        ^`](#)**
+
+  * [IceHrm](https://icehrm.com/) - IceHrm employee management system allows companies to centralize confidential employee information. ([Demo](https://icehrm.com/demo.php), [Source Code](https://github.com/gamonoid/icehrm/)) `Apache` `PHP`
+  * [OrangeHRM](https://www.orangehrm.com/) - OrangeHRM is a comprehensive HRM system that captures all the essential functionalities required for any enterprise. ([Source Code](https://sourceforge.net/projects/orangehrm/)) `GPLv2` `PHP`
+  * [Sentrifugo](http://www.sentrifugo.com/) - Sentrifugo is a HRM system that can be easily configured to meet your organizational needs. ([Source Code](https://github.com/sapplica/sentrifugo)) `GPLv3` `PHP`
+
+
 ## Learning and Courses
 
 **[`^        back to top        ^`](#)**