Create new "gh-pages" branch for demo

[jsejcksn]

You should probably do this on all your repos that have index pages.

[qodesmith]

@jsejcksn Thanks for the input. I've used rawgit before as a live demo (as opposed to github pages). It's an easy simple solution. I'll look into getting the rest of my repo's running with a live demo. If you'd like to check out some of my other projects, my personal site has a projects page with live demo's (including this calculator). Thanks again for the input!