Add NOTEBOOKS folder with README

Author: Kumar Sivarajan

NOTEBOOKS/README.md

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+# NOTEBOOKS
+
+This directory contains Jupyter notebooks for Snowflake DataScience projects.
+
+## Purpose
+This folder will house various data science notebooks covering:
+- Data analysis with Snowflake
+- Machine learning implementations
+- Real-time hands-on projects
+- Snowflake integration examples
+
+## Getting Started
+More notebooks will be added as the project develops.