Add render Live API deployment link

Author: kibongos40

README.md

@@ -2,6 +2,7 @@
 
 A simple Express.js API for querying Rwanda's administrative divisions: Provinces, Districts, Sectors, Cells, and Villages. Powered by the [`rwanda-geo-structure`](https://www.npmjs.com/package/rwanda-geo-structure) package.
 
+- **Live API:** [https://rda-ad-divisions.onrender.com/](https://rda-ad-divisions.onrender.com/)
 - **GitHub Repo:** [kibongos40/rwanda-administrative-divisions-api](https://github.com/kibongos40/rwanda-administrative-divisions-api)
 
 ## Features