GUACAMOLE-224: Update style guidelines to note that we don't accept "@author".
GUACAMOLE-224: Update style guidelines to note that we don't accept "@author".

mike-jumper/incubator-guacamole-website,mike-jumper/incubator-guacamole-website,mike-jumper/incubator-guacamole-website,mike-jumper/incubator-guacamole-website,mike-jumper/incubator-guacamole-website