fix: typo

Author: lucifer

README.md

@@ -292,7 +292,7 @@ leetcode 题解，记录自己的 leetcode 解题之路。
 - [0493.reverse-pairs](./problems/493.reverse-pairs.md) 🆕
 - [0895.maximum-frequency-stack](./problems/895.maximum-frequency-stack.md) 🆕
 - [1168.optimize-water-distribution-in-a-village](./problems/1168.optimize-water-distribution-in-a-village-cn.md) 🆕
-- [1449.form-largest-integer-with-digits-that-add-up-to-target](./problesm/1449.form-largest-integer-with-digits-that-add-up-to-target.md) 🆕
+- [1449.form-largest-integer-with-digits-that-add-up-to-target](./problems/1449.form-largest-integer-with-digits-that-add-up-to-target.md) 🆕
 
 ### 数据结构与算法的总结
 

problems/1449.form-largest-integer-with-digits-that-add-up-to-target.md

@@ -211,4 +211,4 @@ for j in V to 0:
 
 大家也可以关注我的公众号《脑洞前端》获取更多更新鲜的 LeetCode 题解
 
-![](https://pic.leetcode-cn.com/89ef69abbf02a2957838499a96ce3fbb26830aae52e3ab90392e328c2670cddc-file_1581478989502)
+![](https://tva1.sinaimg.cn/large/007S8ZIlly1gfaq00p8stj30x20iw7b0.jpg)