text: const express = require('express');
  require('dotenv').config();
  
  const app = express();
  const port = process.env.PORT || 8000;
  
  app.use(express.static('docs'));
  
  app.get('/', (req, res) => {
    res.status(200).sendFile('./index.html');
  });
  
  app.use((req, res) => {
    res.status(404).send('sorry, resource not found');
  });
  
  app.listen(port, () => console.log(`app listening on port ${port}`));
  
  module.exports = app;
  