Add CI badge

README.md

@@ -1,7 +1,10 @@
 # Snout Docusaurus Configuration
 
 [![Current version][badge-version-image]][badge-version-link]
+[![Build status][badge-build-image]][badge-build-link]
 
+[badge-build-image]: https://img.shields.io/github/workflow/status/snout-router/docusaurus-config/CI?style=for-the-badge
+[badge-build-link]: https://github.com/snout-router/docusaurus-config/actions/workflows/ci.yml
 [badge-version-image]: https://img.shields.io/npm/v/@snout/docusaurus-config?label=%40snout%2Fdocusaurus-config&logo=npm&style=for-the-badge
 [badge-version-link]: https://npmjs.com/package/@snout/docusaurus-config