update CHANGELOG.org

Author: Ron89

CHANGELOG.org

@@ -28,7 +28,9 @@
 *** Removed
     - Removed the requirement for TODO state keywords to be upper-case.
 *** Fixed
-    - Tree promoting/demoting no longer destroy list/checkbox structure. (closes #217)
+    - Fixed python3 compatible issue within =CalendarAction=. (merges #242, closes #241)
+    - Tree promoting/demoting no longer destroy list and checkbox structure.
+      (closes #217)
     - Fixed bug when promote/demote headings when it contain lists. (merges
       #239, partly fixed #217)
     - Silenced =W18= warning when non-ASCII coded TODO keywords are used. (merges #236)