fix some field were not returned from TodoSerializer

Author: Mohammed2372

todo/serializers.py

@@ -12,7 +12,7 @@
 class TodoSerializer(ModelSerializer):
     class Meta:
         model = Todo
-        fields = ["id", "title", "description"]
+        fields = ["id", "title", "description", "completed", "date_created"]
 
 
 class TodoDetailSerializer(ModelSerializer):