updated doc
updated doc

garris/BackstopJS,garris/BackstopJS,thepechinator/BackstopJS,cookchristopher/BackstopJS,mirzazeyrek/BackstopJS,klausbayrhammer/BackstopJS,garris/BackstopJS,mirzazeyrek/BackstopJS,thepechinator/BackstopJS,klausbayrhammer/BackstopJS,cookchristopher/BackstopJS