update changelog

Changelog.md

@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.24] - 2023-08-03
+- Add more information and links to the survey landing page
+- Add error handling for surveys failing to load for various reasons in the frontend
+
+## [0.23] - 2023-08-01
+- Fix redirects when not logged in
+
 ## [0.22] - 2023-08-01
 - COMP-232: Changed styling of the survey frontend
 - Added simple admin user management page