Write guide about using offline ed25519 keys on relays
Hello,
tor-0.2.7.2-alpha introduced the ability for relays to store their master keys offline.
If we actually want people to use this feature, it would be nice if we made some sort of guide for relay operators and send it to [tor-relays] or something.
Getting more people to use it soon will also help us weed out any bugs or issues with this feature.