update changelog

Author: d8vjork

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.0] - 2022-10-27
+
+### Added
+
+- Third optional parameter to `UnionBuilder::search` which lets modify Laravel Scout builder instance used for search
+
 ## [0.2.0] - 2022-10-27
 
 ### Changed