Changelog.

Author: michaelrsweet

CHANGES.md

@@ -9,7 +9,7 @@ v1.9.21 (YYYY-MM-DD)
 - Fixed a bug in the new PDF link code (Issue #536)
 - Fixed a bug in the number-up code (Issue #539)
 - Fixed a regression in leading whitespace handling (Issue #540)
-- Fixed a bug in numbered heading support.
+- Fixed a bug in numbered heading support (Issue #543)
 
 
 v1.9.20 (2024-12-09)