Fix cross-reference warning in v1.1.0 release docs

Remove the problematic cross-reference link that was causing MyST
xref_missing warning. The internationalization section is still
documented, just without the specific anchor link.

Author: mmcky

docs/source/releases/v1.1.0.md

@@ -57,7 +57,7 @@ With language configured, directive labels automatically translate:
 
 ## 📚 Documentation Updates
 
-- Added internationalization section to [syntax guide](../syntax.md#internationalization-i18n)
+- Added internationalization section to syntax guide
 - Updated README with i18n feature highlights
 - Created releases documentation structure
 - Enhanced translation README with contribution workflow