Website Debian repo instructions could use some adjustment

[Blzut3]

SLADE Version

No response

OS

Linux

Issue Details

The website's instructions for using the DRD Team repo could use some refinement. At a minimum if you're going to go with the keyring directory method you may as well just skip the apt-add-repository command since it's providing no real benefit. (It adds the source and does an apt update, but the latter fails due to the key not being in place (causing confusion: https://forum.drdteam.org/viewtopic.php?t=10115). So the final echo does its job and the user needs to call apt update anyway afterwords anyway which is not documented.)

sudo mkdir -p /etc/apt/keyrings
sudo wget https://debian.drdteam.org/drdteam.gpg -P /etc/apt/keyrings
echo 'deb [signed-by=/etc/apt/keyrings/drdteam.gpg] https://debian.drdteam.org/ stable multiverse' | sudo tee /etc/apt/sources.list.d/drdteam.list
sudo apt update

Starting with Ubuntu 22.04 and Debian 12 there is a slightly more streamlined method though which I recently added to the header of the repo:

sudo wget -P /etc/apt/sources.list.d https://debian.drdteam.org/drdteam-$(dpkg --print-architecture).sources
sudo apt update