bug#57163: completing-read not allow cycling of the options by default

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sat, 13 Aug 2022 19:31:39 +0000
> From: uzibalqa <uzibalqa@proton.me>
> Cc: michael_heerdegen@web.de, 57163@debbugs.gnu.org
> 
> > > Cannot see <UP> and <DOWN> arrow keys described in "8.1 Using the Minibuffer" or after that.
> >
> >
> > Wrong place. Look in "Minibuffer History".
> 
> I have a problem with that, because I cannot see how someone reading "Minibuffer History"
> would associate those commands with moving through the options when using the minibuffer.
> 
> For many users, information listing the key-associated commands that can be employed when using
> the minibuffer, is more useful in the part "8.1 Using the Minibuffer", rather than finding it much
> much later and within the context of minibuffer history.

Well, you are supposed to read the entire chapter, not just one
section.  Reading a single section is for those who know what they are
after, and get to the section via the index entries.

Anyway, I've now added an explicit reference to completion to the text
in "Minibuffer History", and also added an index entry about
walking through completion candidates, leading there.

And with that, I'm closing this bug report.