docs: update security badge

Author: alvis

README.md

@@ -212,6 +212,6 @@ Copyright © 2020, [Alvis Tang](https://github.com/alvis). Released under the [M
 [![build](https://img.shields.io/github/actions/workflow/status/alvis/xception/test.yaml?style=flat-square)](https://github.com/alvis/xception/actions)
 [![maintainability](https://img.shields.io/codeclimate/maintainability/alvis/xception?style=flat-square)](https://codeclimate.com/github/alvis/xception/maintainability)
 [![coverage](https://img.shields.io/codeclimate/coverage/alvis/xception?style=flat-square)](https://codeclimate.com/github/alvis/xception/test_coverage)
-[![security](https://img.shields.io/snyk/vulnerabilities/github/alvis/xception?style=flat-square)](https://snyk.io/advisor/npm-package/xception)
+[![security](https://img.shields.io/sonar/vulnerabilities/alvis_xception/master?server=https%3A%2F%2Fsonarcloud.io&style=flat-square)](https://snyk.io/advisor/npm-package/xception)
 [![dependencies](https://img.shields.io/librariesio/release/npm/xception?style=flat-square)](https://libraries.io/npm/xception)
 [![license](https://img.shields.io/github/license/alvis/xception.svg?style=flat-square)](https://github.com/alvis/xception/blob/master/LICENSE)