Add a homepage

[jbuck]

It'd be nice to have a single page accessible by the browser that examples what this service is, and how to use it.

[humphd]

You mean a live instance, or a gh-pages that just lists what it does?

[jbuck]

A live instance. Just a simple page that says "Hey, this web site lets to sniff content types" And has an input box to enter a URL and use it. Maybe list the API too?