Update _config.yml

fixing media as it shouldn't be nested in _posts
Update _config.yml
Updated README.md
Updated README.md
Update default.html
Add Gemfile.

Installing jekyll (once you have bundler) is now as simple as,
"bundle install".  This is the recommended way to install jekyll
according to https://help.github.com/articles/using-jekyll-with-pages
Merge pull request #8 from cscott/add-gemfile

Add Gemfile.
merged
Merge branch 'gh-pages' of https://github.com/nevvkid/starter into gh-pages