lint fix

Author: nschloe

examples/showcase/bachelors_degrees_by_gender.py

@@ -9,7 +9,8 @@
 Also demonstrates the custom placement of text labels along the right edge
 as an alternative to a conventional legend.
 
-Note: The third-party mpl style dufte_ produces similar-looking plots with less code.
+Note: The third-party mpl style dufte_ produces similar-looking plots with
+less code.
 
 .. _dufte: https://github.com/nschloe/dufte
 """