docs: v1.0.0

CHANGELOG.md

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+# 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]
+
+- Nothing yet
+
+## [1.0.0] - 2024-02-16
+
+### Added
+
+- First tagged release
+- Updated README to describe the deployed livesim2 service and the representation metadata files.
+- Updated ProgramInformation
+- Updated compressed representation data files (json.gz) to livesim2 v 1.2.0.
+
+[Unreleased]: https://github.com/Dash-Industry-Forum/livesim-content/compare/v1.0.0...HEAD
+[1.0.0]: https://github.com/Dash-Industry-Forum/livesim-content/releases/tag/v1.0.0