Update README.md

Author: zzzhangboya

README.md

@@ -20,8 +20,8 @@
 
 ### 入门篇 🐶
 
-- [使用 Python3 写算法题](./introduction/python.md)
-- [算法快速入门](./introduction/quickstart.md)
+- [使用 Python3 写算法题√](./introduction/python.md)
+- [算法快速入门√](./introduction/quickstart.md)
 
 ### 数据结构篇 🐰
 
@@ -36,7 +36,7 @@
 
 - [二分搜索](./basic_algorithm/binary_search.md)
 - [排序算法](./basic_algorithm/sort.md)
-- [动态规划](./basic_algorithm/dp.md)
+- [动态规划√](./basic_algorithm/dp.md)
 - [图相关算法](./basic_algorithm/graph/)
 
 ### 算法思维 🦁