Update README.md

Author: supertarto

README.md

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 # Ansible GLPI
 [![Build Status](https://travis-ci.org/supertarto/ansible-glpi.svg?branch=master)](https://travis-ci.org/supertarto/ansible-glpi)
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 An Ansible Role to install and configure GLPI. You must have a Web Server, php and MariaDB on your server. This role is tested only with Apache.
 
 ## Requirements