chore: add badge

.github/workflows/tests.yml

@@ -1,4 +1,4 @@
-name: Tests workflow
+name: tests workflow
 on: [push]
 
 jobs:

README.md

@@ -2,12 +2,14 @@
 
 **Manage parallel loading and order of polyfills.**
 
-<br/>[![Sponsored by][sponsor-img]][sponsor] [![Version][npm-version-img]][npm] [![Downloads][npm-downloads-img]][npm]<br/>[![Dependencies][deps-img]][deps]
+<br/>[![Sponsored by][sponsor-img]][sponsor] [![Version][npm-version-img]][npm] [![Downloads][npm-downloads-img]][npm]<br/>[![Dependencies][deps-img]][deps] [![Build][github-workflow-img]][github-workflow]
 
 [sponsor]: https://www.sebastian-software.de
 [deps]: https://david-dm.org/sebastian-software/polyfill-manager
 [npm]: https://www.npmjs.com/package/polyfill-manager
+[github-workflow]: https://github.com/sebastian-software/polyfill-manager/actions/tests%20workflow
 [sponsor-img]: https://badgen.net/badge/Sponsored%20by/Sebastian%20Software/692446
 [deps-img]: https://badgen.net/david/dep/sebastian-software/polyfill-manager
 [npm-downloads-img]: https://badgen.net/npm/dm/polyfill-manager
 [npm-version-img]: https://badgen.net/npm/v/polyfill-manager
+[github-workflow-img]: https://github.com/sebastian-software/polyfill-manager/workflows/tests%20workflow/badge.svg