Update changes

Author: CompetitiveLin

README.md

@@ -26,6 +26,7 @@
 
 | 最近提交时间 | 题目 | 题目难度 | 提交次数| 重刷次数 |
 | ---- | ---- | ---- | ---- | ---- |
+| 2023-12-26 22:24 | [#1143 最长公共子序列](https://leetcode.cn/problems/longest-common-subsequence) | MEDIUM | 2 | 1 |
 | 2023-12-24 12:30 | [#567 字符串的排列](https://leetcode.cn/problems/permutation-in-string) | MEDIUM | 3 | 1 |
 | 2023-12-23 10:30 | [#1962 移除石子使总数最小](https://leetcode.cn/problems/remove-stones-to-minimize-the-total) | MEDIUM | 1 | 1 |
 | 2023-12-20 20:08 | [#94 二叉树的中序遍历](https://leetcode.cn/problems/binary-tree-inorder-traversal) | EASY | 1 | 1 |