docs: add note about the blog post and tools being community contributions

Author: mcanouil

docs/blog/posts/2025-10-10-quarto-wizard-1-0-0/index.qmd

@@ -63,6 +63,14 @@ editor:
   render-on-save: true
 ---
 
+:::: {.callout-note title="Community Contribution"}
+
+The {{< meta quarto-wizard >}} Quarto Wizard extension and listing directory website are built and maintained by [{{< meta author.1 >}}]({{< meta authors.1.url >}}).
+
+In this post, he explains what it is and how it can help you manage Quarto extensions directly from Positron or Visual Studio Code.
+
+:::
+
 ![](featured.png){
   .hero-banner
   .img-fluid