diff --git a/problems/0704.二分查找.md b/problems/0704.二分查找.md
index d202dfa1..52abf578 100644
--- a/problems/0704.二分查找.md
+++ b/problems/0704.二分查找.md
@@ -5,7 +5,7 @@
 <p align="center"><strong><a href="https://mp.weixin.qq.com/s/tqCxrMEU-ajQumL1i8im9A">参与本项目</a>，贡献其他语言版本的代码，拥抱开源，让更多学习算法的小伙伴们收益！</strong></p>
 
 
-## 704. 二分查找
+# 704. 二分查找
 
 [力扣题目链接](https://leetcode.cn/problems/binary-search/)
 
@@ -766,4 +766,3 @@ object Solution {
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>
 </a>
-