Update README.md

README.md

@@ -3,10 +3,11 @@
 
 # Usage
 
+```
 icinga2_plugins_repos:
   - key_name: my_icinga_plugins
     key_source: /etc/ansible/files/keys
     key_destination: /root/.ssh
     git_repo: ssh://git@gitlab.example.net/my/icinga-plugins.git
     git_destination: /usr/lib/nagios/plugins/my
-
+```