Clarify Cartpole renderer release note

Author: StafaH

source/isaaclab_tasks/changelog.d/default-newton-classic.minor.rst

@@ -1,6 +1,5 @@
 Changed
 ^^^^^^^
 
-* **Breaking:** Changed the Cartpole task family and the default renderer preset
-  to Newton MJWarp and the Newton renderer. Pass explicit physics and renderer
-  presets to retain an Isaac Sim PhysX configuration.
+* **Breaking:** Changed the Cartpole task family to use Newton MJWarp and the Newton renderer by default.
+  Pass explicit physics and renderer presets to retain an Isaac Sim PhysX configuration.