Add changelog entry

extensions/ql-vscode/CHANGELOG.md

@@ -1,5 +1,9 @@
 # CodeQL for Visual Studio Code: Changelog
 
+## 1.3.3 - [UNRELEASED]
+
+- Fix display of raw results entities with label but no url.
+
 ## 1.3.2 - 12 August 2020
 
 - Fix error with choosing qlpack search path.