This is exactly the reason I'm doing this :-)
From my past efforts, I can offer you https://github.com/cognician/datomic-doc, which is a riff on the idea of marrying a Markdown editor to doc strings on entities in a Datomic database.
It exposes a handful of Ring handlers as a library, so you can plug it into any Ring web app that uses Datomic and get a turn-key tech doc system.
It's a complete Clojure/ClojureScript/Datomic application, and it's only 800 lines.
I hope it helps you, and feedback is totally welcome!
As for 'book learning'; Living Clojure by Carin Meier is currently in the USD 1 Humble Bundle at https://www.humblebundle.com/books/functional-programming-bo.... It has a 13 week FP course in it. Highly recommended.