text: var express = require('express');
  var app = express();
  
  app.use(express.static('public'));
  app.use('/node_modules', express.static('node_modules'));
  
  app.get('/', function (req, res) {
    res.send('Hello World!');
  });
  
  app.listen(3000, function () {
    console.log('Example app listening on port 3000!');
  });
  