Fix link

Author: nicknettleton

src/pages/index.astro

@@ -62,7 +62,7 @@ const posts = (await getCollection('blog')).sort(
                         </a>
                     </li>
                     <li>
-                        <a href="https://www.linkedin.com/in/nicknettleton/" target="_blank">
+                        <a href="https://github.com/nicknettleton" target="_blank">
                             GitHub
                         </a>
                     </li>