Add changelog

CHANGELOG.md

@@ -43,6 +43,7 @@
     Bug #5367: Selecting a spell on an enchanted item per hotkey always plays the equip sound
     Bug #5369: Spawnpoint in the Grazelands doesn't produce oversized creatures
     Bug #5370: Opening an unlocked but trapped door uses the key
+    Bug #5379: Wandering NPCs falling through cantons
     Bug #5384: openmw-cs: deleting an instance requires reload of scene window to show in editor
     Bug #5387: Move/MoveWorld don't update the object's cell properly
     Bug #5391: Races Redone 1.2 bodies don't show on the inventory