Add CI badge

Author: mornir

README.md

@@ -1,6 +1,7 @@
 # nuxt-netlify-functions-example
 
 [![Netlify Status](https://api.netlify.com/api/v1/badges/ae375e95-eb24-46ed-95d3-a8591add95bc/deploy-status)](https://app.netlify.com/sites/nuxt-netlify-functions-example/deploys)
+[![GitHub Actions](https://img.shields.io/github/workflow/status/wearelucid/nuxt-netlify-functions-example/End-to-end%20tests?label=build&logo=github&style=for-the-badge)](https://github.com/mornir/copywork-portfolio/actions)
 
 > Nuxt.js example for running Netlify functions locally in a dev environment and as a generated static site deployed to Netlify.