Add standard supported banner (#1720) (#1729)

(cherry picked from commit 942c3b3)

Co-authored-by: Charlotte Wickham <[email protected]>

Author: github-actions[bot]

_quarto.yml

@@ -682,6 +682,13 @@ format:
     code-copy: true
     code-overflow: wrap
     css: styles.css
+    include-in-header:
+      - text: |
+          <script src="https://cdn.jsdelivr.net/gh/posit-dev/supported-by-posit/js/badge.min.js"
+            data-light-bg="#dee2e6"
+            data-light-text="#404041"
+            data-dark-lt="#ffffff"
+            data-dark-gt="#ffffff"></script>
     include-after-body: js.html
     grid:
       sidebar-width: 250px