@Lubos Rendek Mod
Hi!
$ wget -qO- https://dl.winehq.org/wine-builds/Release.key | sudo apt-key add -
Key file has changed in winehq. org, so now the command must be something like
$ wget -qO- https://dl.winehq.org/wine-builds/winehq.key | sudo apt-key add -
to avoid errors on next steps.
Hope it helps.