Update changelog

Author: brews

CHANGELOG.md

@@ -6,6 +6,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 ### Changed
+- Remove mutable argument defaults to avoid gotchas. ([PR #44](https://github.com/ClimateImpactLab/dscim/pull/44), [@brews](https://github.com/brews))
 - Quiet unused(?), common, logging messages to terminal. ([PR #14](https://github.com/ClimateImpactLab/dscim/pull/14), [@brews](https://github.com/brews))
 
 ## [0.1.0] - 2022-08-30