Create theme feature table
It might be cool to have a table that shows what kinds of things a particular theme supports on its gh-page or repo readme.  This would give users a quick overview of what they can expect from the theme. 

The Cabin repo could have a standard one that would be used across all the themes. It would look something like this:

| Feature | Support |
| --- | --- |
| Template Langs | Jade, EJS |
| Preprocessors | Sass, Less |
| Responsive | yes |
| Comments | yes |
| Post Tags | no |
