Improve changelog

Author: sbernauer

crates/stackable-operator/CHANGELOG.md

@@ -6,8 +6,8 @@ All notable changes to this project will be documented in this file.
 
 ### Added
 
-- Add `ProductSpecificCommonConfig`, so that product operators can have custom fields on the `commonConfig`.
-  Also add a `JavaCommonConfig`, which can be used by JVM based tools to offer `jvmArgumentOverrides` ([#931])
+- Add `ProductSpecificCommonConfig`, so that product operators can have custom fields within `commonConfig`.
+  Also add a `JavaCommonConfig`, which can be used by JVM-based tools to offer `jvmArgumentOverrides` with this mechanism ([#931])
 
 [#931]: https://github.com/stackabletech/operator-rs/pull/931