update

Author: kamyu104

README.md

@@ -27,8 +27,8 @@
 * [Tree](https://github.com/kamyu104/LeetCode-Solutions#tree)
 * [Hash Table](https://github.com/kamyu104/LeetCode-Solutions#hash-table)
 * [Math](https://github.com/kamyu104/LeetCode-Solutions#math)
-* [Two Pointers](https://github.com/kamyu104/LeetCode-Solutions#two-pointers)
 * [Sort](https://github.com/kamyu104/LeetCode-Solutions#sort)
+* [Two Pointers](https://github.com/kamyu104/LeetCode-Solutions#two-pointers)
 * [Recursion](https://github.com/kamyu104/LeetCode-Solutions#recursion)
 * [Binary Search](https://github.com/kamyu104/LeetCode-Solutions#binary-search)
 * [Binary Search Tree](https://github.com/kamyu104/LeetCode-Solutions#binary-search-tree)