Update README.md

一支穿云箭 · web-flow · commit 820ea9b96139 · 2019-07-25T00:40:03.000+08:00
diff --git a/README.md b/README.md
@@ -1 +1,3 @@
-# Algorithm
+# Algorithm
+
+[![Known Vulnerabilities](https://snyk.io//test/github/scq355/algorithm-leetcode/badge.svg?targetFile=pom.xml)](https://snyk.io//test/github/scq355/algorithm-leetcode?targetFile=pom.xml)
