Update README.md

Author: perrysk-msft

README.md

@@ -4,6 +4,9 @@
 
 [Documentation](https://github.com/microsoft/mssql-python/wiki) | [Release Notes](https://github.com/microsoft/mssql-python/releases) | [Roadmap](https://github.com/microsoft/mssql-python/blob/main/ROADMAP.md)
 
+> **Note:**
+> This project is currently in an alpha phase, meaning it is still under active development. We are looking to validate core functionalities and gather initial feedback before a broader public launch. Please use with caution and avoid production environments.
+> 
 ## Installation
 
 mssql-python can be installed with [pip](http://pypi.python.org/pypi/pip)