I think the first priority should be to improve the accessibility of the docs. Wiki style, or drop-down sub categories. It doesn’t matter - just so long as you can get to the information you need quickly
Guess how I found out the I2C connection pins? They weren’t in the docs, they were in some guy’s random comment about how he had connected up some sensor.
That sort of data must be discoverable within seconds if the docs are to succeed.