use ssi for more pages

[~bandali/bndl.org] / 404.html

<!--# set var="title" value="404 Not Found" -->
<!--# include virtual="/ssi/pre0.html" -->
<nav><a href="/">bandali.eu.org</a></nav>
<main>
<h1>404</h1>
<p>Sorry, that page does not exist.</p>
<!--# include virtual="/ssi/post.html" -->