bug#12492: Acknowledgement (24.2.50; Open vc-dir buffer easier and faster)

[Eli Zaretskii]

> Cc: 12492@debbugs.gnu.org, larsi@gnus.org, juri@linkov.net
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Fri, 13 Mar 2020 14:23:51 +0200
> 
> > How can we describe such an extension in advance in the user manual?
> 
> Maybe by using a higher-level language like I suggested earlier in this 
> discussions.

That'd be some vague general principle, not a documentation of
specific commands.

> Projects are this and that, you can use commands xx and yy whn inside a 
> project. If the current buffer does not belong to a project, you will be 
> prompted for a directory to look in. The main project type supported by 
> Emacs OOB is VC repositories.

Sorry, not in my book.  This text begs gobs of questions for which
there will be no answers.  User manuals shouldn't do that.

> How do we document completion-at-point, for instance? It's also
> extensible.

We describe the available variants.  Please take a look at the
relevant text (in "Symbol Completion" and in "Shell Mode").