✨ Update changelog for version 2.0.0

Author: dflook

CHANGELOG.md

@@ -4,7 +4,7 @@ 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] - 2018-01-13
 ### Added
 - Optional source transformations:
     - Rename locals, enabled by default
@@ -34,6 +34,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - python-minifer package
 - pyminify command
 
-[1.2.0]: https://github.com/dflook/python-minifier/compare/1.1.0...HEAD
+[2.0.0]: https://github.com/dflook/python-minifier/compare/1.1.0...2.0.0
 [1.1.0]: https://github.com/dflook/python-minifier/compare/1.0.0...1.1.0
 [1.0.0]: https://github.com/dflook/python-minifier/tree/1.0.0