README

I've written out some basic installation and usage instructions. Since it's mainly meant to be used in dev/test environments, I figure the easiest approach is to use the server version, since you can just add it to your app list and forget about it, and having an extra process running isn't really a problem, so I've put more emphasis on that API.

I also did a quick refactor of a method that was unnecessarily complex, felt like overkill to do a PR just for that so I've put it in here, but let me know if you'd prefer to consider it separately.