Added ignore in setup.cfg file

Author: dosart

binary_search_tree/binary_serch_tree.py

@@ -12,7 +12,7 @@ def __init__(self):
         self._count = 0
 
     def __len__(self):
-        """Return size of list
+        """Return size of list.
 
         Returns:
             size(int): size of nodes

setup.cfg

@@ -7,7 +7,7 @@ doctests = True
 enable-extensions = G
 isort-show-traceback = True
 
-ignore = WPS414
+ignore = WPS110
 
 [isort]
 # See https://github.com/timothycrosley/isort#multi-line-output-modes