Autocorrect Schemaless URL Input in Website Shocker for Ease of Use

Thanks for building the Website Shocker Tool! I enjoyed using it but quickly became frustrated when the URL's I was inserting without a schema (i.e http, https) were being rejected as invalid. We are spoiled by chrome and other browsers by being able to search for 'www.google.com' and have it autocorrected to 'http://www.google.com' so I built a quick autocorrect function so others don't feel the same annoyance! 

Hope this helps and keep up the awesome work!