Merge pull request #74 from danerlt/master

update bubble_sort

README.md

@@ -78,9 +78,7 @@ def bubble_sort(lst):
     for passnum in range(len(lst) - 1, 0, -1):
         for i in range(passnum):
             if lst[i] > lst[i + 1]:
-                temp = lst[i]
-                lst[i] = lst[i + 1]
-                lst[i + 1] = temp
+                lst[i], lst[i + 1] = lst[i + 1], lst[i]
 ```
 <details><summary>View Examples</summary>