Fix

LokiSharp · web-flow · commit 25b3d4e02c67 · 2017-01-21T21:15:56.000+08:00
diff --git a/4.shellSort.md b/4.shellSort.md
@@ -42,7 +42,7 @@ function shellSort(arr) {
 }
 ```
 
-## 2. Python 代码实现
+## 3. Python 代码实现
 
 ```python
 def shellSort(arr):
