docs(changelog): update

CHANGELOG.md

@@ -6,7 +6,15 @@ 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]
+## [2.0.0] - 2024-06-21
+
+### BREAKING CHANGE
+
+- Drop `neolua` in favour of [`nlua`](https://github.com/mfussenegger/nlua).
+  This removes the `neolua` and `neorocks` flake outputs, and the ones that
+  depend on them.
+  Instead, this flake now provides a `busted-nlua` flake output that
+  has `busted` preconfigured to use `nlua`.
 
 ## [1.1.0] - 2023-09-01