Re: [PATCH v2] doc: mention that 'git submodule update' fetches missing commits

> 'git submodule update' will fetch new commits from the submodule remote
> if the SHA-1 recorded in the superproject is not found. This was not
> mentioned in the documentation.
>
> Helped-by: Junio C Hamano <gitster@pobox.com>
> Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
> Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
> Signed-off-by: Junio C Hamano <gitster@pobox.com>
> ---
> Changes since v1 [4]:
> - Added my signed-off, corrected my email address
>   and shortened the title of the commit message
>   (I had actually done that when I resent my patch in [1] using submitGit, 
>   but this dit not add the "v2" prefix)
> - Added Junio's suggestion [2] (which was applied in [3] on top of the original 
>   submission [4] instead of the revised one [1]), and squashed
> - Added Helped-by trailers
> - Rebased on v2.23.0 (as was done for [3])