bug#47634: Accompany .asc and .DIGESTS keys for the ISO

[bo0od]

Hi There,

I see there is only .sig provided:

https://guix.gnu.org/en/download/

Its better to provide more than one way of verification e.g:

Qubes: https://www.qubes-os.org/downloads/
Whonix: https://www.whonix.org/wiki/VirtualBox/XFCE
...etc

ThX!