Jekyll Remote Theme Support Added

Basically Basic can now be installed remotely for use on GitHub Pages!

The days of having to forking this repo and manually manage updates are over. Simply install the jekyll-remote-theme plugin by doing the following and away you go.

1. If you’ve previously forked this repo start by removing _layouts, _includes, _sass, assets/javascripts, and assets/stylesheets. Be sure to leave any files that you’ve customized so they override the versions bundled in the theme.

2. In your Gemfile replace gem "jekyll" with the following:

   gem "github-pages", group: :jekyll_plugins
   gem "jekyll-remote-theme"
   

3. Run bundle update and verify that all gems install properly.

4. Add remote_theme: "mmistakes/jekyll-theme-basically-basic" to your _config.yml file.

5. Then add jekyll-remote-theme to the plugins (previously gems) array in your _config.yml file like so:

   plugins:
     - jekyll-remote-theme