Add packaging summit to programme overview

Author: hypha

src/pages/overview.astro

@@ -53,6 +53,8 @@ const imageStyle = "m-2 md:float-right max-w-[300px] md:max-w-[400px] lg:max-w-[
           <li><a href="/session/rust-summit/">Rust Summit</a></li>
           <li><a href="/session/webassembly-summit">WASM Summit</a></li>
           <li><a href="/session/c-api-summit/">C API Summit</a></li>
+          <li><a href="/session/packaging-summit/">Packaging Summit</a></li>
+          
         </ul>
       </div>