text: var express = require('express');
  var app = express();
  
  app.set('port', (process.env.PORT || 5000));
  app.use(express.static(__dirname + '/app'));
  
  app.get('/', function(request, response) {
      response.send('Hello World!');
  });
  
  app.listen(app.get('port'), function() {
      console.log("Node app is running at localhost:" + app.get('port'));
  });
  