Merge pull request #1 from aniarya82/gh-pages

add options div, changed the look of jumbotron
[minor] Fix grammar, and add comments in JS part.
Moved the javascript to the end of the page for faster loading.

http://elegantcode.com/2010/03/30/your-javascript-goes-where/
Added three modals for the three options, which are shown on clicking the learn
more button under each option.