Update to showcase networking capabilities

Now that we run our own micro-datacenter, we can fully reproduce it with NixOS :-)

index.html

@@ -11,6 +11,8 @@
     <li>Rust | WebAssembly</li>
     <li>Nix | NixOS | NixOps</li>
     <li>React.js | React Native</li>
+    <li>IPv6(-only) deployments | Tunnel technologies (WireGuard, IPsec) | Multiprotocol BGP</li>
+    <li>Security | Pentest</li>
   </ul>
 </p>
 <p>-> <a href="mailto:contact@newtype.fr">contact@newtype.fr</a></p>