nixos/iodine: improve description of some options

Co-Authored-By: Martin Weinelt <mweinelt@users.noreply.github.com>

Changed files
+1 -1
nixos
modules
services
networking
+1 -1
nixos/modules/services/networking/iodine.nix
···
server = mkOption {
type = types.str;
default = "";
-
description = "Domain or Subdomain of server running iodined";
+
description = "Hostname of server running iodined";
example = "tunnel.mydomain.com";
};