Changing more links to local
Work on c3s1.
Fix to make relative link to stylesheet work from any level of the site.
Cleaning up the deployment rake task
Add jekyll as a dependency
Finish course3 session1
CNAME in .gitignore, to allow different copies of the notes to be hosted at different urls.
Add update section to the readme.
Fix relative links. Removed unused d3 stuff.
Fix another relative link
Change title of c3s1
Added exercise summary for second exercise.
Updated deployment instructions in readme.
Tweaks to readme
Add preparation for course1
Add source to Gemfile.
Add rbenv rehash in the instructions.
Updating to 375038e94e1cf1e732f3b425d83e29bc99d844b7.