Simplify CHANGELOG version headers

Author: spawnia

CHANGELOG.md

@@ -5,21 +5,21 @@ 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](https://github.com/mll-lab/laravel-graphql-playground/compare/v2.0.2...master)
+## Unreleased
 
-## [v2.0.2](https://github.com/mll-lab/laravel-graphql-playground/compare/v2.0.1...v2.0.2)
+## v2.0.2
 
 ### Fixed
 
 - Lumen compatibility: Do not use `public_path()` helper
 
-## [v2.0.1](https://github.com/mll-lab/laravel-graphql-playground/compare/v2.0.0...v2.0.1)
+## v2.0.1
 
 ### Fixed
 
 - Lumen compatibility: Remove usage of unavailable path helpers
 
-## [v2.0.0](https://github.com/mll-lab/laravel-graphql-playground/compare/v1.1.0...v2.0.0)
+## v2.0.0
 
 ### Added