Fix link to newsletter

Signed-off-by: Mandy Chessell <[email protected]>

Author: mandy-chessell

site/mkdocs.yml

@@ -312,7 +312,7 @@ nav:
   - Releases:
       - Overview: release-notes/overview.md
       - Newsletters:
-            - January 2025: release-notes/october-2025.md
+            - January 2025: release-notes/january-2025.md
             - October 2024: release-notes/october-2024.md
             - June 2024: release-notes/june-2024.md
             - August 2023: release-notes/august-2023.md