As well as the reasonably good ansible documentation, checkout the ansible-examples github repo. ( https://github.com/ansible/ansible-examples )

There's a few initial 'conventions' to figure out (roles, group vars, playbooks), but then it's so incredibly simple to get into.

My dad is playing with a raspberry pi at home, wanting to set up a web kiosk thing. I'd been doing something similar a few months ago for work, so I send him my ansible playbook. He could follow it as if it were a plain text checklist/tutorial, without needing ansible at all. If he wants to automate it, he can.

That, I think, is one of the benefits of ansible. It's not a lot more work than just writing an overview of what you need to do in the first place, but with the benefit of it being repeatable and automated.