code: public static ResourceRecordSet<TXTData> txt(String name, Collection<String> txtdata) {
      return new TXTBuilder().name(name).addAll(txtdata).build();
    }
docs: creates txt set of {@link denominator.model.rdata.TXTData TXT} records for the specified name.
  
  @param name    ex. {@code denominator.io.}
  @param txtdata txtdata values ex. {@code ["made in sweden", "made in norway"]}