Update README.md

sfmDev · web-flow · commit f148f7055a13 · 2017-09-06T21:38:27.000+08:00
diff --git a/README.md b/README.md
@@ -16,3 +16,4 @@ Search Insert Position</br>
 Length of Last Word</br>
 Same Tree</br>
 Minimum Depth of Binary Tree</br>
+Path Sum</br>
