Add Netlify badge

Author: j-f1

README.md

@@ -1,4 +1,6 @@
 # typescript-eslint.io
+[![Netlify Status](https://api.netlify.com/api/v1/badges/128d21c7-b2fe-45ad-b141-9878fcf5de3a/deploy-status)](https://app.netlify.com/sites/typescript-eslint/deploys)
+
 A website for the typescript-eslint project
 
 Hosting generously provided by [Netlify](https://www.netlify.com/?utm_source=typescript-eslint&utm_medium=github). Thanks, Netlify! ❤