Correct CHANGELOG

Author: brews

CHANGELOG.md

@@ -6,8 +6,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 ### Added
-- Large update to package environment pins. (PR #183, @brews) 
 - Add badge for current release DOI to README. (@brews)
+### Changed
+- Significant update to container/package environment pins. (PR #183, @brews) 
 
 ## [0.18.0] - 2022-03-03
 ### Added