Add Fossa badge (webdriverio#4885)

Author: christian-bromann

README.md

@@ -100,3 +100,9 @@ If you're looking for issues to help out with, check out [the issues labelled "g
 ## Project Governance
 
 This project is maintained by [awesome people](/AUTHORS.md) following a common [set of rules](/GOVERNANCE.md) and treating each other with [respect and appreciation](/CODE_OF_CONDUCT.md).
+
+## License
+
+[MIT](/LICENSE-MIT)
+
+[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fwebdriverio%2Fwebdriverio.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2Fwebdriverio%2Fwebdriverio?ref=badge_large)