This is about not having to update the demo site by copy pasting html by hand.
I propose we use a static site generator, such as middleman or jekyll, and pull the demo and component sources from Bower. These static generators allow including file sources, so we can directly include the demo from each component. This will be easier if angular-ui repos adopt a convention on demo filenaming.
We can pull either the latest release or the git repo from bower for stable/unstable demo site builds