ChangeLog update

doc/ChangeLog

@@ -3,22 +3,25 @@
 Tag name: cam6_3_125
 Originator(s): fvitt
 Date: 29 Aug 2023
-One-line Summary: Generalize aerosol optics
+One-line Summary: Introduce abstract interface to aerosol optics
 Github PR URL: https://github.com/ESCOMP/CAM/pull/824
 
 Purpose of changes (include the issue number and title text for each relevant GitHub issue):
 
- Issue #816 -- Refactor aerosol optics to use abstract aerosol optics class
+  Issue #816 -- Refactor aerosol optics to use abstract aerosol optics class which can be
+                extended for different aerosol representations such as MAM and CARMA
 
-Describe any changes made to build system:
+Describe any changes made to build system: n/a
 
 Describe any changes made to the namelist:
 
-List any changes to the defaults for the boundary datasets:
+  Namelist group "modal_aer_opt_nl" is renamed as "aerosol_optics_nl"
 
-Describe any substantial timing or memory changes:
+List any changes to the defaults for the boundary datasets: n/a
 
-Code reviewed by:
+Describe any substantial timing or memory changes: n/a
+
+Code reviewed by: cacraigucar mattldawson nusbaume
 
 List all files eliminated: