chore: update readme (#51)

Co-authored-by: Gagik Amaryan <[email protected]>

Author: blva

README.md

@@ -2,6 +2,9 @@
 
 A Model Context Protocol server for interacting with MongoDB Atlas. This project implements a Model Context Protocol (MCP) server enabling AI assistants to interact with MongoDB Atlas resources through natural language.
 
+> [!CAUTION]
+> Do not use this in production. This is a work in progress and is not intended for production use. It is meant for demonstration purposes only.
+
 ## 📚 Table of Contents
 
 - [🚀 Getting Started](#getting-started)