feat: wrap all links in a nav-element

src/pages/index.astro

@@ -40,6 +40,7 @@ import "../styles/global.css";
           <p>A zebra from Germany</p>
           <p>(Web-)dev by day – furry, gamer and game master by night</p>
         </section>
+        <nav>
           <ul class="flex flex-col gap-2">
             <li>
               <ExternalLink
@@ -82,6 +83,7 @@ import "../styles/global.css";
               </ExternalLink>
             </li>
           </ul>
+        </nav>
       </article>
     </main>
   </body>