add link

index.html

@@ -38,6 +38,9 @@
             </p>
             <h2>Sitemap</h2>
             <ul>
+                <ul>
+                    <a href="/niche-software.html">Using a niche programming language</a>
+                </ul>
                 <li>
                     <a href="/dancer2-controllers.html">Dancer2::Controllers and Perl Attributes</a>
                 </li>
@@ -94,6 +97,6 @@
             </div>
             <h2>Disclaimer</h2>
             <p>All opinions are my own, they do not reflect the thoughts expressed by my employer(s) past, present, or future.</p>
-        </div>
+      </div>
     </body>
 </html>