bug#49899: 28.0.50; doc; package-archives default value is changed

[tsuucat]

Hi,

The section Creating and Maintaining Package Archives in Elisp manual 
(doc/lispref/package.texi:L286)says,
>   Via the Package Menu, users may download packages from @dfn{package
> archives}.  Such archives are specified by the variable
> @code{package-archives}, whose default value contains a single entry:
> the archive hosted by the GNU project at @url{https://elpa.gnu.org}.  This
> section describes how to set up and maintain a package archive.


But package-archives default value is now
(("gnu" . "https://elpa.gnu.org/packages/";)
 ("nongnu" . "https://elpa.nongnu.org/nongnu/“)) .

So document needs to be fixed.

--
tsuucat