Update README.md

scarsu · web-flow · commit ee0c0c00acb3 · 2021-06-29T11:18:17.000+08:00
diff --git a/README.md b/README.md
@@ -39,7 +39,7 @@
 
 - [20. 有效的括号](https://github.com/Geekhyt/javascript-leetcode/issues/21)✅
 - [84. 柱状图中最大的矩形](https://github.com/Geekhyt/javascript-leetcode/issues/22)✅
-- [155. 最小栈](https://github.com/Geekhyt/javascript-leetcode/issues/23)
+- [155. 最小栈](https://github.com/Geekhyt/javascript-leetcode/issues/23)✅
 
 ## 贪心
 
