text: //server.js
  //require modules
  var express = require('express');
  var path = require('path');
  //instantiate express
  var app = express();
  //set port
  app.set('port', (process.env.PORT || 5000));
  //use static files
  app.use(express.static(path.join(__dirname, 'public')));
  //express routes
  app.get('/', function(req, res){
    res.sendFile(path.join(__dirname, 'index.html'));
  });
  app.get('/', function(req, res){
    res.sendFile(path.join(__dirname, 'registration.html'));
  });
  app.get('/', function(req, res){
    res.sendFile(path.join(__dirname, 'Edit User profile.html'));
  });
  
  //express server listen
  var server = app.listen(app.get('port'), function(){
    console.log('Server listening on port ',app.get('port'));
  });