text: const express = require('express');
  const app = express();
  
  app.use(express.static('static'));
  
  app.get('/', function(request, response) {
    response.sendFile(__dirname + '/public/index.html');
  });
  
  const listener = app.listen(process.env.PORT || 8000, function() {
    console.log('Your app is listening on port ' + listener.address().port);
  });
  