Update README.md

yanglbme · web-flow · commit fc4e0ba9bf83 · 2024-08-09T10:50:48.000+08:00
diff --git a/solution/0200-0299/0260.Single Number III/README.md b/solution/0200-0299/0260.Single Number III/README.md
@@ -238,7 +238,9 @@ public class Solution {
 
 <!-- solution:end -->
 
-### Solution 2
+<!-- solution:start -->
+
+### 方法二：哈希表
 
 <!-- tabs:start -->
 
