an "interactive" tutorial to demonstrate how to read rustdoc-generated documentation
There are a lot of little tricks in rustdoc that people often don't know. There's a "How to read this documentation" in the std docs, but it's easy to overlook and doesn't explain everything in the rustdoc layout. So i'm taking it upon myself to write a guide that's as exhaustive as i can muster, so we can document even more things that rustdoc does.