docs: Up readme

README_EN.md

@@ -334,4 +334,12 @@ Download the release from [release](https://github.com/lejianwen/rustdesk-api/re
 - [WIKI](https://github.com/lejianwen/rustdesk-api/wiki)
 - [Connection Timeout](https://github.com/lejianwen/rustdesk-api/issues/92)
 - [Change client ID](https://github.com/abdullah-erturk/RustDesk-ID-Changer)
-- [Web client source](https://hub.docker.com/r/keyurbhole/flutter_web_desk)
+- [Web client source](https://hub.docker.com/r/keyurbhole/flutter_web_desk)
+
+## Acknowledgements
+
+Thanks to everyone who contributed!
+
+<a href="https://github.com/lejianwen/rustdesk-api/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=lejianwen/rustdesk-api" />
+</a>