Added barebone index.html

So far, there's the top navbar and the footer (with Twitter Follow
button, GitHub's Star and Fork button).

The options on the navbar will definitely change.
Set default styles for page

The body has to have padding-top to avoid fixed-navbar from overlaying
other html content.

abbr[title]'s border-bottom width is set to 0 because it had a weird
dotted-line at the bottom at first. And cursor is set to pointer because
cursor was a question mark before this.
Changed social media buttons to correct name
Added Etherpad jQuery Plugin

I have added the plugin. To make the plugin work, do this:
 - Add div with 'id'
 - Add something like this
   $('#your-div-id').pad({
      'width': 500,
      'height': 500,
      'showChat': true
   });
 - Add etherpad.js script at the bottom!
Added ckeditor directory