Worth mentioning that while this was very nice work by a Helix enthusiast, it was proposed as a replacement for the official docs and mostly rejected, and for good reasons IMO. An instructive discussion!
https://github.com/helix-editor/helix/pull/12127#issuecommen...
It's rarely a good idea to do a bunch of work on a big change to an open source project in a direction that has not been validated by the maintainers. Or at least, if you do, do it for your own education and don't have high expectations that it will be merged. The contributor in question had a very good attitude about it.