Bug#823237: References still made to the LDP

Package: www.debian.org

The Linux Documentation Project [1] is mentioned in Debian's docs and on its
site, often as the only source of general GNU/Linux docs. As far as I can see,
it is largely an outdated resource; floppy disks are regularly mentioned, there
are links to software tarballs, etc. In fact, none of the "most popular Linux
documents and manuals" [2] have seen updates in the last 13 years, some as many
as 20. (And they are 2 clicks from the front page!) I don't think we are doing
anyone a favour by mentioning these.

I was asked to post alternatives, but many online resources are
distro-specific. Maybe the ArchWiki [3] could be mentioned? Though IMO it is
better to have nothing than outdated misinformation.

[1] http://www.tldp.org/
[2] https://www.debian.org/doc/ "Manuals for GNU/Linux in general"
[3] https://wiki.archlinux.org/