Documenting MQTT messages

[jrocketfingers]

Hi folks, I'm running a Klimerko-like setup (same sensors, same NodeMCU, but possibly ESP32 instead), with ESPHome firmware. If I understand Klimerko's code correctly, it's just sending MQTT messages to api.allthingstalk.io, and klimerko.org is picking up Klimerko devices from there? If this is the case, I could contribute sensor data as well if I knew the messages being sent.

I should be able to deduce MQTT messages from the codebase, but are there any intentions to document this? If not, I'd be glad to document them if I manage to make it work. In that case, could you direct me on how/where would you want it documented?