Update README.md

Author: styler

README.md

@@ -9,3 +9,7 @@ Everything in this repository is a work in progress and subject to change.
 ### Contributing
 
 We welcome contributions to this document. Please see our [Contributing Guide](./CONTRIBUTING.md) for more information.
+
+<a href="https://github.com/streamelements/docs/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=streamelements/docs" />
+</a>