Update CHANGELOG

Author: gjsjohnmurray

CHANGELOG.md

@@ -1,6 +1,8 @@
 ## 2.0.3 (dd-Mmm-yyyy)
 * Imporove positioning of assertion failure markers (#50)
 * Remove need to define helper SQL functions via DDL.
+* Promote use of `vscode-per-namespace-settings` package for webapp setup.
+* Update DC contest text in README.
 
 ## 2.0.2 (30-Jul-2025)
 * Fix coverage marking when `"objectscript.multilineMethodArgs": true` (#46)