Update README.md

Geekhyt · web-flow · commit d9d297909991 · 2021-01-31T22:42:36.000+08:00
diff --git a/README.md b/README.md
@@ -13,6 +13,7 @@
 
 ## 链表
 
+- [19. 删除链表的倒数第 N 个结点](https://github.com/Geekhyt/javascript-leetcode/issues/12)
 - [21. 合并两个有序链表](https://github.com/Geekhyt/javascript-leetcode/issues/7)
 - [24. 两两交换链表中的节点](https://github.com/Geekhyt/javascript-leetcode/issues/8)
 - [141. 环形链表](https://github.com/Geekhyt/javascript-leetcode/issues/9)
