Add changelog for first release

CHANGELOG.md

@@ -0,0 +1,29 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.1.0] - 2023-08-03
+
+### Added
+
+- Unittest and documentation setup
+- Pre-commit pipeline for style-checking
+- Better logging for min_budget >= max_budget (#33)
+- CONTRIBUTING.md for future contributions
+
+### Fixed
+
+- Use of deprecated numpy method (#41)
+- If condition for Client cleanup (#45)
+
+### Changed
+
+- README.md to feature badges
+
+[unreleased]: https://github.com/automl/compare/v0.1.0...HEAD
+[0.1.0]: https://github.com/automl/releases/tag/v0.1.0