[Koha] apt-key deprecated waring

[David Nind]

Hi Alvaro.

This is not my area of expertise, and hopefully others more knowledgeable
can comment, but I think you need to add the Koha Community key first.

See
https://wiki.koha-community.org/wiki/Koha_on_Debian#Setting_up_package_sources

I think the instructions need updating, which I will happily do based on
any comments made on this mailing list thread about the correct way to set
up the package sources.


David Nind
New Zealand