There is a Talk page where you can discuss changes, so if you are unsure you can always raise the issue there and see if anyone howls, but the simple fact of the matter is that any changes can always be undone...
And don;t feel constrained to tweak the docs that are there.... if you feel the need to expand docs to address something that has not been addressed, you can do that as well.... That might take a bit of planning so that the incremental pages "fit" with the rest of the docs, but there are those around who really believe in community who will be able to help.
And - because of how the docs have been tweaked to be version specific, there are LOTS of fixes to be made.