feat: enhance metadata in example.qmd

Add author details and subtitle to improve documentation clarity and provide proper attribution.

Author: mcanouil

example.qmd

@@ -1,14 +1,20 @@
 ---
 title: "Autolinked references and URLs"
+subtitle: "Quarto Extension"
+author:
+  - name: "Mickaël CANOUIL, _Ph.D._"
+    orcid: "0000-0002-3396-4549"
+    url: "https://mickael.canouil.fr"
+format:
+  html:
+    output-file: index
+    toc: true
 description: |
   References to GitHub issues, pull requests, and commits are automatically shortened and converted into links.
 page-layout: full
 filters:
   - path: github
     at: post-quarto
-format:
-  html:
-    output-file: index
 ---
 
 `github` is an extension for [Quarto](https://quarto.org) to automatically shortens and converts [GitHub references](https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/autolinked-references-and-urls) into links.