Doc string added

Author: Liam Hoflay

python/tk_multi_publish2/publish_tree_widget/tree_node_item.py

@@ -64,6 +64,9 @@ def create_summary(self, level=0):
         """
         Creates summary of actions
 
+        :param level: The level this item lives within the tree, for indentation purposes.
+        :type level: int
+
         :returns: List of strings
         """
         if self.checked: