Update README.md

Author: ajeetraina

README.md

@@ -12,6 +12,13 @@
 - Over 500+ Highly Interactive Docker Tutorials and Guides
 - Well tested on Docker Desktop  and can be run on Browser (no Infrastructure required)
 
+## ⭐ Star History
+
+If this repo helped you learn Docker, please star it! ⭐
+
+[![Star History Chart](https://api.star-history.com/svg?repos=collabnix/dockerlabs&type=Date)](https://star-history.com/#collabnix/dockerlabs&Date)
+
+
 # 📝 Join our Community
 
 - Join 9000+ DevOps Engineers today via [Community Slack](https://launchpass.com/collabnix)