update changelog

Author: AmintorDusko

.github/CHANGELOG.md

@@ -5,7 +5,7 @@
 ### Breaking changes
 
 ### Improvements
-* Add a Catalyst wrapper for the LightningKokkos simulator.
+* Add a Catalyst-specific wrapping class for Lightning Kokkos.
   [(#770)](https://github.com/PennyLaneAI/pennylane-lightning/pull/770)
 
 ### Documentation
@@ -41,9 +41,6 @@ Amintor Dusko
 * Add support for `C(BlockEncode)` to Lightning devices.
   [(#743)](https://github.com/PennyLaneAI/pennylane-lightning/pull/743)
 
-* Add a Catalyst-specific wrapping class for Lightning Kokkos.
-  [(#770)](https://github.com/PennyLaneAI/pennylane-lightning/pull/770)
-
 ### Breaking changes
 
 * Removed the `QuimbMPS` class and the corresponding interface/backend from `lightning.tensor`.