feat: put external links in a nav

src/pages/index.astro

@@ -31,6 +31,7 @@ import "../styles/global.css";
           height={200}
         />
         <h1>Kai Moschcau</h1>
+        <nav>
           <ul class="flex flex-col gap-2">
             <li>
               <ExternalLink
@@ -43,6 +44,7 @@ import "../styles/global.css";
               </ExternalLink>
             </li>
           </ul>
+        </nav>
       </article>
     </main>
   </body>