Add changelog entry

extensions/ql-vscode/CHANGELOG.md

@@ -3,6 +3,7 @@
 ## 1.3.3 - [UNRELEASED]
 
 - Fix display of raw results entities with label but no url.
+- Fix bug where sort order is forgotten when changing raw results page
 
 ## 1.3.2 - 12 August 2020