rupakraj/DeepLearning ? reverse-engineered prompt

Build me a small classroom friendly deep learning notebook project that helps me teach the basics of PyTorch.

I want a simple repo with a couple of Jupyter notebooks, one for a toy introduction to PyTorch and one for showing train, validation, test splits plus overfitting, underfitting, and regularization like dropout and L1 or L2. Make it easy to open in VS Code and run from start to finish with clear cells, short explanations, and example outputs that students can follow. Keep the setup straightforward with a requirements file and instructions for creating a virtual environment and selecting the right notebook kernel. If you need to check current PyTorch or notebook docs online, do that. Please make the notebooks polished, readable, and ready for classroom use, with code that runs cleanly and examples that are simple enough for beginners to understand.