Update README.md

Added detailed project overview, dataset source, dependencies, instructions to run the notebook, and a results table with sample accuracy and AUC scores for all models in the Rainfall Prediction Classifier project.

Author: pathananas2007

README.md

@@ -34,6 +34,4 @@ All required libraries are listed in `requirements.txt`. Key packages:
 Install dependencies with:  
 ```bash
 pip install -r requirements.txt
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