docs/404.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="initial-scale=0.5, maximum-scale=1">
    <meta http-equiv="refresh" content="0;URL='https://polkadot.js.org/docs/api/'" />
    <title>Redirecting to https://polkadot.js.org/docs/api/</title>
  </head>
  <body>
    Redirecting to <a href="https://polkadot.js.org/docs/api/">https://polkadot.js.org/docs/api/</a>
  </body>
</html>