Fix renovate-config repo link

Author: northword

index.html

@@ -510,7 +510,7 @@ <h2>⚙️ Workflow & Standards</h2>
               </p>
               <div class="links">
                 <a
-                  href="https://github.com/zotero-plugin-dev/renovate"
+                  href="https://github.com/zotero-plugin-dev/renovate-config"
                   class="btn btn-outline"
                   target="_blank"
                   >GitHub</a