* Link to jekyllrb.com as @parkr suggested.
* Add a few more directions and hints for Github Pages users who have errors.
* Add words that were missing and made stuff make no sense.
This makes the issue template more robust, making check boxes so users can submit and check or check as they go. It also starts using HTML comments so that directions for the users aren't always displayed to us (gotta love Markdown.) And provides the users with more hints on what we would like from them when filing a ticket.
