bug#36417: [PATCH] Document bookmark annotations in Emacs Manual

[Eli Zaretskii]

> Date: Fri, 28 Jun 2019 09:07:23 -0700 (PDT)
> From: Drew Adams <drew.adams@oracle.com>
> Cc: 36417@debbugs.gnu.org
> 
> > > Btw, what is the use case for using annotations but not showing them?
> > > If that use case is not important enough, perhaps we shouldn't mention
> > > the second option.
> > 
> > Good point.  I don't think it's a very important use case, so I
> > removed it.
> 
> It should not be removed.

We didn't remove the variable, we just avoided documenting it in the
manual.  Not every option of every package is documented in the Emacs
manual.  If you think bookmark.el warrants a more detailed
documentation, please consider writing a separate Texinfo manual for
it, as we have for many other packages.