This site plays slide presentations and articles stored on GitHub in the present format.
The syntax for URLs is:
https://go-talks.appspot.com/github.com/owner/project/file.ext https://go-talks.appspot.com/github.com/owner/project/sub/directory/file.ext
The supported file extensions (.ext) are .slide and .article.
The .html command is not supported.
This page is an article.