docs(changelog): uniquify 0.2.11 heading for markdownlint MD024

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: ulises-jeremias

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## 0.2.11 - 2026-07-23
 
-### CLI / argv trailing directory
+### CLI / argv after template URL
 
 - Do not treat `--template` / `-t` / other option *values* (e.g. `file://…`) as the project positional when expanding `--addons` / `--extend`. Fixes trailing `project_directory` being swallowed as an addon slug after a template URL (#245).