Demo

const express = require('express');

const app = express();

app.get('/', (req, res) => {
    res.send(`
        <h1>Home Page</h1>

        <ul>
            <li><a href="/">Home</a></li>
            <li><a href="/about">About</a></li>
        </ul>
    `);
});

app.get('/about', (req, res) => {
    res.send('About us');
})

app.listen(3000);
console.log('Server is listening on port 3000...');