code: public static String technote(int[] numbers, String message) {
      StringBuilder sb = new StringBuilder()
              .append(message)
              .append("\n")
              .append("\n")
              .append("For more information visit:\n");
  
      for (int number : numbers) {
        sb.append("  http://jira.h2o.ai/browse/TN-").append(Integer.toString(number)).append("\n");
      }
  
      return sb.toString();
    }
docs: Return an error message with an accompanying list of URLs to help the user get more detailed information.
  
  @param numbers H2O tech note numbers.
  @param message Message to present to the user.
  @return A longer message including a list of URLs.