docs: update changelog

CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Changed 
 
+- Store remote schemas as committed local files 
+  This prevents the live runtime loading untested changes
 - Refactored planning_configuration message definition
   - Remove region_of_interest and exclusion_zones 
   - Add primitives array of classified geojson Features
@@ -49,7 +51,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Added
 
 JSON schema definitions for the SoAR project
-- outer wrapper MESSAGE definition 
+- outer wrapper MESSAGE definition
 - header object 
 - payload object
   - acknowledgement