Clarify whether github.com/cz-nic/deckard is abandoned or not
There's currently one open issue and one open PR (from me) for almost 9 months in the Github mirror https://github.com/cz-nic/deckard
Since it's a public fork with commit activity, it's not clear whether it's just a mirror or whether it's abandoned. Perhaps an issue like this one https://github.com/CZ-NIC/knot-resolver/issues/50 would be helpful to clarify?