text: var express = require('express')
  var app = require('express')();
  var http = require('http').Server(app);
  const PORT = process.env.PORT || 4000;
  
  app.use(express.static('client'))
  
  app.get('/', function(req, res){
      res.sendFile(__dirname + '/client/index.html');
  });
  
  http.listen(PORT, function(){
      console.log('listening on *:4000');
  });
  