Wow, someone found this in my github repos. Reformatting it to make it readable directly without HTML has been on my TODO list for 3 years, as indicated by the README.
Some more info... I studied the Abbot and Costello routine for hours trying to get the back and forth flow just right, half of what makes "Who's on First" funny is the timing and delivery (some might say it's all timing and delivery). Some things are technically a little of a stretch to make it match their original routine better.
What appears to be a simple HTML page requires third party javascript to run before it will render.
I believe it's a GitHub thing, so people can't simply host static stuff inside repos.
Actually, that looks like it's not run by github at all (github allows it's users to host static pages). Someone else made that and is hosting via github.io and then a 3rd person found this page and linked it using the JavaScript page.