Docs: stunKeepaliveSeconds is now stunKeepaliveStartS, stunKeepaliveMinS

Hi together,

stunKeepaliveSeconds is now stunKeepaliveStartS, stunKeepaliveMinS . I’d suggest updating https://docs.syncthing.net/users/config.html?highlight=csrf accordingly. (No hurry, not expecting someone to do it NOW)

Kind regards Catfriend1

Please do :slight_smile: