Make the kif's directory real

https://kcd.im/kifs is neat, but... It could be better. Even just a nicer design would be good.

I just made it a single index.html file because I like how easy it is to do that. No tooling install needed. I love it.

I don't mind keeping it that way, but if someone wants to make the directory actually useful and would prefer to bring in CRA or something that'd be cool.

We might consider just putting it on my website too: https://kentcdodds.com/kifs would make sense I think.

Anyway, I think I've done as much as I'm going to on it. Anyone else who wants to take it and run with it is welcome :)

Start with the single index.html file and inspect the current directory at https://kcd.im/kifs. Decide whether the work should remain a no-tooling page or move to CRA, and whether it should also be hosted at https://kentcdodds.com/kifs. Done means an agreed scope and a more useful, nicer directory with its deployment location established.

Written by the indexing model from the issue text.