Yes, docrails has public write access now indeed, looking forward to
those contributions :).
Let me explain a bit though, since docrails is often misunderstood.
The documentation is generated from master. The main source of
documentation is/should be master. Patches in master, either from LH
or from core, should have proper tests and docs.
So, docrails is not a documentation project. docrails are not the
documenters of Rails. All contributors are the documenters. As it
happen with tests. You do not commit code and expect someone else to
write tests for it. Your commit has to be complete. Same for the docs,
Docs may involve copy-editing, guidelines conformance, better
wording... That's a commit review (normally from me). But the content
has to be there.
As far as the API is concerned, you have to think docrails is LH.
That's the right analogy. The difference (and that's the reason d'etre
of the project), is that in LH you contribute a patch and wait, while
in docrails you contribute a patch and by default it goes.
docrails was born to make contribution to docs more agile than
contributions to code. But code, tests, and docs are all in the same
league. They come primarily from master.