Update README.md file

README.md

@@ -1,24 +1,38 @@
-Nagios plugin to check Git Repository status
-============================================
+# Nagios plugin to check Git Repository status
 
-Usage
------
+## Installation
+
+```
+apt-get install git
+git clone https://gitea.zionetrix.net/bn8/check_git_config.git /usr/local/src/check_git_config
+mkdir -p /usr/local/lib/nagios/plugins
+ln -s /usr/local/src/check_git_config/check_git_config /usr/local/lib/nagios/plugins/
+
+# To add check on /var/www/website status (owned by www-data)
+echo "nagios ALL= (www-data) NOPASSWD: /usr/local/lib/nagios/plugins/check_git_config -g /var/www/website" > /etc/sudoers.d/nagios-git-website
+chmod 0400 /etc/sudoers.d/nagios-git-website
+echo "command[check_git_website]=sudo -u www-data /usr/local/lib/nagios/plugins/check_git_config -g /var/www/website" > /etc/nagios/nrpe.d/git-website.cfg
+service nagios-nrpe-server reload
+```
+
+
+## Usage
 
 ```
 Usage : check_git_config -g [directory] [-c|-r remote] [-d]
 	-g [directory]	Specify Git root directory (default : /srv/common)
 	-c		Check Git remote state
 	-r [remote]	Specify Git remote to check (default : origin)
+	-H		Hide detected changes
+	-F		Show full diff in case of changes detected (default: short)
 	-d		Enable debug mode
 ```
 
-Copyright
----------
+## Copyright
 
 Copyright (c) 2018 Benjamin Renard
 
-License
--------
+## License
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License version 2