Some mostly minor updates to the write-up for S22.
Cleans up some Markdown Lint warnings
Removes/modifies some language left over from S21 when they did all this on their own gear
Tries to tidy up or clarify the language in a few places
Fixes the method names in UserControllerSpec that didn't follow the Java standards
While I was there, I added a few methods to improve our branch coverage. We tested things like a missing name, but and empty name, so some of the validations were never triggered.
Some mostly minor updates to the write-up for S22.
UserControllerSpecthat didn't follow the Java standards