text: /*
  In an earlier exercise, you created a crew array to represent Mal’s crew from the
  hit show Firefly.
  
  var captain = "Mal";
  var second = "Zoe";
  var pilot = "Wash";
  var companion = "Inara";
  var mercenary = "Jayne";
  var mechanic = "Kaylee";
  
  var crew = [captain, second, pilot, companion, mercenary, mechanic];
  
  Later in the show, Mal takes on three new crew members named "Simon", "River",
  and "Book". Use the push() method to add the three new crew members to the crew
  array.
  */
  
  var captain = "Mal";
  var second = "Zoe";
  var pilot = "Wash";
  var companion = "Inara";
  var mercenary = "Jayne";
  var mechanic = "Kaylee";
  
  var crew = [captain, second, pilot, companion, mercenary, mechanic];
  
  var doctor = "Simon";
  var sister = "River";
  var shepherd = "Book";
  
  crew.push(doctor, sister, shepherd);
  