Merge pull request #24 from mickeyouyou/patch-2

Update LeetCode No.231：pow of 2

Merge pull request #24 from mickeyouyou/patch-2
Update LeetCode No.231：pow of 2
4bc2b55a · 程序员吴师兄 · GitHub · fdee9bf6 · 95aeea99 · 4bc2b55a
Unverified Commit 4bc2b55a authored May 21, 2019 by 程序员吴师兄 Committed by GitHub May 21, 2019
--- a/notes/LeetCode第231号问题：2的幂.md
+++ b/notes/LeetCode第231号问题：2的幂.md
@@ -15,7 +15,7 @@
 ```
 输入: 1
 输出: true
-解释: 20 = 1
+解释: 2^0 = 1
 ```

 **示例 2:**
@@ -23,7 +23,7 @@
 ```
 输入: 16
 输出: true
-解释: 24 = 16
+解释: 2^4 = 16
 ```

 **示例 3:**