update changelog

Author: jonhealy1

CHANGELOG.md

@@ -1,4 +1,5 @@
 # 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/),
@@ -16,4 +17,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
-[Unreleased]: <https://github.com/stac-extensions/template/compare/v1.0.0...HEAD>
+## [v1.0.0-beta.1] - 2024-10-17
+
+- first release
+
+[Unreleased]: https://github.com/Healy-Hyperspatial/merkle-tree-stac-extension/tree/v1.0.0-beta.1...main
+[v1.0.0-beta.1]: https://github.com/Healy-Hyperspatial/merkle-tree-stac-extension/tree/v1.0.0-beta.1