docs(readme): further details on upcoming features

Author: mfranzke

CHANGELOG.md

@@ -6,6 +6,14 @@ 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).
 And the commit messages from [Conventional Commits](https://conventionalcommits.org) are being used.
 
+## [Unreleased]
+
+### Added
+
+- Method for reinit with a specific scope without the <noscript> HTML tag, compare to #94
+- CONTRIBUTING.MD
+- Description on how to use with MutationObserver (won't be included within the polyfill itself)
+
 ## [2.0.0-rc.1] - 2021-04-03
 
 ### Added