Back to development (#251)

Return to development changelog status.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

- **Documentation**
- Added an "Unreleased" section to the changelog for tracking future
updates.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: JacobOaks

CHANGELOG.md

@@ -3,6 +3,9 @@ All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+- No changes yet.
+
 ## 0.5.2 (28 Apr 2025)
 
 ### Fixed