Bump changelog version headers for 0.6.0

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 ## Unreleased
 
+* Changes
+* Fixes
+* New Features
+
+## Version 0.6.0 (beta), 10 Map 2023
+
 * Changes
     * API calls now have timeouts of 30 seconds
     * Splash screen shows while app is loading the initial account then it brings up timelines/etc. rather than waiting