public/index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Hello from Vercel</title>
  </head>
  <body>
    <h1>Hello from Vercel</h1>

    <p>Edit this file in <code>public/index.html</code></p>

    <p>
      Your app receives webhook requests at
      <code>POST /api/github/webhooks</code>
    </p>
  </body>
</html>