Fix typo in comment

somacdivad · somacdivad · commit 0188a9cb68ae · 2018-12-08T14:34:35.000-06:00
diff --git a/ch17-graphical-user-interfaces/6-challenge.py b/ch17-graphical-user-interfaces/6-challenge.py
@@ -3,7 +3,7 @@
 
 # Please note that there are many ways to solve this challenge. The code
 # contained in this solution is just one way. If your solution is different,
-# but work, then you did a great job!
+# but works, then you did a great job!
 
 import tkinter as tk
 from tkinter import filedialog
