Custom logging using e.g. katip/monad-logger

Hey folks, thanks for writing Spock!

This might not be the place for this request but I was wondering if you could perhaps add some advice to the documentation about how Spock users should go about adding logging to a Spock application. I know there are things like wai-extras that have a wai middleware for logging requests but, at least in the applications I work on, I'd also like to do some custom logging.

Specifically, I'm interested in how I should go about integrating with common libraries like monad-logger or katip but I'd appreciate any general advice you have.