Add a link to the Torrent downloads

[carlavilla]

Summary

Add a link to the Torrent downloads

PR: 275246

[lwhsu]

The Torrents page contains both latest production and legacy release versions so we may need to mention this in both places, perhaps under the table of each -RELEASE, or putting in the "Choosing an Image" section. For the wording I suggest saying something like The magnet links to download via BitTorrent protocol are available at link:https://wiki.freebsd.org/Torrents[FreeBSD Torrents Wiki page].

[carlavilla]

In D51904#1189567, @lwhsu wrote:

The Torrents page contains both latest production and legacy release versions so we may need to mention this in both places, perhaps under the table of each -RELEASE, or putting in the "Choosing an Image" section. For the wording I suggest saying something like The magnet links to download via BitTorrent protocol are available at link:https://wiki.freebsd.org/Torrents[FreeBSD Torrents Wiki page].

@lwhsu, if I put literally this text "The magnet links to download via BitTorrent protocol are available at link:https://wiki.freebsd.org/Torrents[FreeBSD Torrents Wiki page]" is ok for you?
To make the commit directly and close this review and the ticket in Bugzilla :)