Update 23.merge-k-sorted-lists.md

Author: azl397985856

problems/23.merge-k-sorted-lists.md

@@ -37,7 +37,7 @@ https://leetcode-cn.com/problems/merge-k-sorted-lists/description/
 ## 关键点解析
 
 - 分治
-- 合并排序(merge sort)
+- 归并排序(merge sort)
 
 ## 代码
 
@@ -159,4 +159,4 @@ class Solution:
 
 ## 相关题目
 
--[88.merge-sorted-array](./88.merge-sorted-array.md)
+- [88.merge-sorted-array](./88.merge-sorted-array.md)