RawGIT Viewer puts Github repository HTML assets into the browser view, when available.
RawGIT Viewer will convert the current Github page URL to a RawGit URL. This extension sends the url to the API at https://github.com/rgrove/rawgit, which serves raw files directly from GitHub with proper Content-Type headers. Cool, huh!?
Shout out to Ash Connolly (http://www.ashconnolly.com) too, for a bit of design inspiration!