Add missing statement in changelog.

Author: LambdAurora

CHANGELOG.md

@@ -147,6 +147,7 @@
 ### 2.3.1
 
  - Fixed ATLauncher configuration somehow ([#152](https://github.com/LambdAurora/LambDynamicLights/pull/152)).
+ - Updated night config.
 
 [SpruceUI]: https://github.com/LambdAurora/SpruceUI "SpruceUI page"
 [pridelib]: https://github.com/Queerbric/pridelib "Pridelib page"