I did this recently, a new microcontroller claimed to support circuitpython but had no instructions on how to actually get it up and running. I eventually figured it out and documented it on my site (and shared a link in the official forum to help people if they looked there for it as it was the first place I looked). Few days later, their wiki had been updated with documentation that was almost identical to what I had written. I was mad at first, but it's not a huge deal - what I set out to accomplish was to ensure people could find the instructions. Ironically I still outrank their official wiki on Google :D