Update docs

CHANGELOG.md

@@ -2,7 +2,7 @@
 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). If you make a pull request to this project, please update this changelog.
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
 ### Added

CONTRIBUTING.md

@@ -44,7 +44,7 @@ If the project maintainer has any additional requirements, you will find them li
 
 - **Add tests!** - Your patch won't be accepted if it doesn't have tests.
 
-- **Document any change in behaviour** - Make sure the `README.md` and any other relevant documentation are kept up-to-date. Add your changes to the `CHANGELOG.md` under the "Unreleased" section.
+- **Document any change in behaviour** - Make sure the `README.md` and any other relevant documentation are kept up-to-date.
 
 - **Consider our release cycle** - We try to follow [SemVer v2.0.0](http://semver.org/). Randomly breaking public APIs is not an option.