Small fix

Author: nickolashkraus

src/flood_fill.py

@@ -3,13 +3,8 @@
 
 https://leetcode.com/problems/flood-fill
 
-Example:
-
-   j →
-  i
-  ↓  1 1 1     2 2 2
-     1 1 0  →  2 2 0
-     1 0 1     2 0 1
+NOTES
+  * Use breadth-first search.
 
 This problem is very straight-forward if you use breadth-first search. Simply
 add adjacent pixels that share the same color as the starting pixel to the
@@ -45,6 +40,14 @@
 
 This solution has O(n) time complexity and O(n) space complexity, since, in the
 worst case, we will need to visit every pixel in the image.
+
+Example:
+
+   j →
+  i
+  ↓  1 1 1     2 2 2
+     1 1 0  →  2 2 0
+     1 0 1     2 0 1
 """
 
 from collections import deque