Update CHANGELOG.md

Author: zspitzer

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to the Lucee Script Runner project will be documented in thi
 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]
+## 2.0.0
 
 ### Added