Fixing changelog format was missing unreleased

Author: mobious999

CHANGELOG.md

@@ -1,5 +1,11 @@
-## Changelog
+# Changelog
+
+## [Unreleased]
+
+- (Placeholder for new changes)
+
+## [0.1.0] - 2025-04-27
 
 - Merge branch 'main' of https://github.com/finsite/template_python (Mark Quinn)
 - Added pylintrc (Mark Quinn)
-- bump: patch version + changelog [skip ci] (github-actions[bot])
+- bump: patch version + changelog [skip ci] (github-actions[bot])