[m-rev.] for review: improve the documentation of the calendar module

[Zoltan Somogyi]

On Tue, 17 Mar 2026 19:20:09 +1100, Julien Fischer <jfischer at opturion.com> wrote:
> > Using that info, I wrote (and just committed) this diff. For your review.
> 
> You didn't attach the diff, so I went and took a look on github.

It wasn't attached, because it was in the email itself :-)

> That's fine.

Thanks.

Zoltan.