function writeFormTitle(){
  //Get Form
  var form = FormApp.getActiveForm();

  //Get Form's Title
  var formTitle = form.getTitle();

  //Get the Write To Spreadsheet ID where the data will be written to
  var destinationSpreadsheet = form.getDestinationId();

  //Activate that Spreadsheet by the destinationSpreadsheet ID
  var sheet = SpreadsheetApp.openById(destinationSpreadsheet).getActiveSheet();

  //Find the last column and row
  var writeToColumn = sheet.getLastColumn()+1;
  var writeToRow = sheet.getLastRow();

  //Write title to Spreadsheet next to submitted data.
  sheet.getRange(writeToRow, writeToColumn, 1, 1).setValue(formTitle);

}