Update changelog

Author: lbebber

CHANGELOG.md

@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Fixed
 
 - **NumericStepper** Fix width on block mode
+- **Button** Update spinner size on small buttons and spinner color on the `danger` variation
 
 ## [5.4.6] - 2018-08-03
 
@@ -32,6 +33,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [5.4.3] - 2018-07-27
 
 ## [5.4.2] - 2018-07-26
+
 ### Added
 - `SuffixIcon` to `Input` component.