Add badge for ci status and code coverage (#12683)

README.md

@@ -9,6 +9,10 @@
     <img src="https://img.shields.io/twitter/follow/fbjest.svg?style=social&label=Follow%20@fbjest" alt="Follow on Twitter" />
   </a>
 </p>
+<p align="center">
+  <a href="https://github.com/facebook/jest/actions/workflows/nodejs.yml"><img alt="GitHub CI Status" src="https://img.shields.io/github/workflow/status/facebook/jest/Node%20CI?label=CI&logo=GitHub"></a>
+  <a href="https://codecov.io/github/facebook/jest"><img alt="Coverage Status" src="https://img.shields.io/codecov/c/github/facebook/jest/main.svg?maxAge=43200"></a>
+</p>
 <p align="center">
   <a href="https://gitpod.io/#https://github.com/facebook/jest"><img alt="Gitpod ready-to-code" src="https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod"></a>
 </p>