Minor: Plugin: vChamilo: Improve docs

plugin/vchamilo/lang/english.php

@@ -45,7 +45,7 @@ $strings['maindatabase'] = 'Database name';
 $strings['manage_instances'] = 'Go to instance manager';
 $strings['newinstance'] = 'Add new instance';
 $strings['no'] = 'No';
-$strings['plugin_comment'] = 'Allows virtualizing chamilo.';
+$strings['plugin_comment'] = 'Allows the virtualization of Chamilo. Use your main Chamilo installation as a hub, then create instances based on the same code but with different databases, and generate snapshots, and manage all instances like VM images.';
 $strings['plugin_title'] = 'Virtual Chamilo';
 $strings['proxysettings'] = 'Proxy settings';
 $strings['registerinstance'] = 'Register an instance';