Disable markdownlint rule no-duplicate-heading (#4563)

reyang · web-flow · commit 445a6835d755 · 2025-06-26T16:36:50.000Z
Unblocks #4530.
diff --git a/.markdownlint.yaml b/.markdownlint.yaml
@@ -12,4 +12,5 @@ ol-prefix:
   style: ordered
 no-inline-html: false
 fenced-code-language: false
+no-duplicate-heading: false
 descriptive-link-text: false
