Update Readme.md

Readme.md

@@ -74,7 +74,6 @@
 | 209  | [长度最小的子数组](https://github.com/MisterBooo/LeetCodeAnimation/tree/master/notes/LeetCode第209号问题：长度最小的子数组.md) |                                                              |
 | 219  | [存在重复元素 II](https://github.com/MisterBooo/LeetCodeAnimation/tree/master/notes/LeetCode第219号问题：存在重复元素II.md) |                                                              |
 | 229  | [求众数II](https://mp.weixin.qq.com/s/ObO4eQbjp1s1g_WXPkjixQ) |                                                              |
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 | 231  | [2的幂](https://github.com/MisterBooo/LeetCodeAnimation/tree/master/notes/LeetCode第231号问题：2的幂.md) |                                                              |
 | 232  | [使用栈实现队列](https://mp.weixin.qq.com/s/j6w94_PjvsL9Dip_xBcqcg) |                                                                       |
 | 237  | [删除链表中的节点](https://mp.weixin.qq.com/s/2XdUeDNblryFpXpTUgsaMQ) |                                                              |