The README in general is inspired. It explains perfectly what it does and the issues it has while making it very clear that it was just a fun side project and does so with quite a bit of humour.
It’s a fresh break from those dry READMEs that talk as if their side project will revolutionise they way you use x.
A note for the privacy-conscious: binaries built in debug mode may contain more personally identifiable information, including full paths and names. Looking at his profile page, he does not seem too worried about concealing his identity, but it's just something to keep in mind if you want to release something (pseudo-)anonymously.
Indeed, this information often even makes it into the app store. You can sometimes decompile (or run strings on) an app and see a developer's home directory, for example.
There is a pitch on the Swift forum to encode only the file name in a binary instead of the entire path, or hash it. The OP there makes some points about file size, even.
It’s a fresh break from those dry READMEs that talk as if their side project will revolutionise they way you use x.