chore: Fix typo in CHANGELOG (#145)

Fix typo in CHANGELOG

Signed-off-by: Bill Murdock <[email protected]>

Author: jwm4

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 * Add newline to md formula export ([#142](https://github.com/DS4SD/docling-core/issues/142)) ([`d07a87e`](https://github.com/DS4SD/docling-core/commit/d07a87e1fbc777cd6d01c7646d714a44a69bc123))
 
-## [v3.16.0](https://github.com/DS4SD/docling-core/releases/tag/v2.16.0) - 2025-01-29
+## [v2.16.0](https://github.com/DS4SD/docling-core/releases/tag/v2.16.0) - 2025-01-29
 
 ### Feature