Add CI badges

README.md

@@ -1,6 +1,9 @@
 # GitHub Checks API Plugin
 [![Join the chat at https://gitter.im/jenkinsci/github-checks-api](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/jenkinsci/github-checks-api)
 [![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](https://github.com/XiongKezhi/checks-api-plugin/issues)
+[![Jenkins](https://ci.jenkins.io/job/Plugins/job/github-checks-plugin/job/master/badge/icon?subject=Jenkins%20CI)](https://ci.jenkins.io/job/Plugins/job/github-checks-plugin/job/master/)
+[![GitHub Actions](https://github.com/jenkinsci/github-checks-plugin/workflows/CI/badge.svg?branch=master)](https://github.com/jenkinsci/github-checks-plugin/actions)
+
 
 This a [Google Summer of Code](https://summerofcode.withgoogle.com/) project for [Jenkins Organization](https://www.jenkins.io/), it is still under development.