manual: `name' is not an argument for `mkOption'

nixos/doc/manual/development/option-types.xml

···
 <example xml:id='ex-submodule-direct'><title>Directly defined submodule</title>
 <screen>
 options.mod = mkOption {
-  name = "mod";
   description = "submodule example";
   type = with types; listOf (submodule {
     options = {