Updated Changelog.md

Author: zstadler

CHANGELOG.md

@@ -1,7 +1,7 @@
 ## main
 
 ### ✨ Features and improvements
-- _...Add new stuff here..._
+- Aligned the implementation of `["geometry-type"]` with [its spec](https://maplibre.org/maplibre-style-spec/expressions/#geometry-type). Now, when applicable, `["geometry-type"]` returns values not available while using `"$type"`: `"MultiPoint"`, `"MultiLineString"`, and `"MultiPolygon"`. The behaviour of `"$type"` has not changed. ([#519](https://github.com/maplibre/maplibre-style-spec/pull/519))
 
 ### 🐞 Bug fixes
 - _...Add new stuff here..._