D4071: resolve: graduate resolve.mark-check from experimental, add docs

[pulkit (Pulkit Goyal)]

pulkit added inline comments.

INLINE COMMENTS

> spectral wrote in config.txt:452
> No, I didn't document the ``none`` case explicitly.  This is saying that "even if it's going to abort, adding --all will bypass the error" (this is part of the hint when it aborts, so maybe it's not useful to mention here?)
> 
> Should I remove this last sentence?

Maybe rephrase to something like that if `--all` flag is passed, only warning will be shown and error won't be raised.
(I am not good at english, so feel free to decide how it is better and let me know, I will push then.)

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D4071

To: spectral, #hg-reviewers
Cc: pulkit, mercurial-devel