Typo fix

Jae Hyeon Park · web-flow · commit ef8d5bea7e03 · 2017-08-09T18:09:01.000+09:00
diff --git a/pygorithm/sorting/shell_sort.py b/pygorithm/sorting/shell_sort.py
@@ -1,7 +1,7 @@
 # Author: OMKAR PATHAK
 # Created On: 31st July 2017
 
-# Best Case O(n logn); Average Case O(depends on gap sequence); Worst Case O(n)
+# Best Case O(n logn); Average Case O(depends on gap sequence); Worst Case O(n^2)
 
 # shell sort algorithm
 def sort(myList):
