docs: update Python and PyTorch version badges in README

Update Python version badge to show specific supported versions (3.10, 3.11, 3.12) and bump PyTorch requirement badge from 2.0+ to 2.6+ to reflect current project dependencies.

Author: Tim Joseph

README.md

@@ -2,9 +2,9 @@
 
 *Tensor containers for PyTorch with PyTree compatibility and torch.compile optimization*
 
-[![Python 3.9+](https://img.shields.io/badge/python-3.9+-blue.svg)](https://www.python.org/downloads/)
+[![Python 3.9, 3.10, 3.11, 3.12](https://img.shields.io/badge/python-3.10%20%7C%203.11%20%7C%203.11%20%7C%203.12-blue)](https://www.python.org/downloads/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
-[![PyTorch](https://img.shields.io/badge/PyTorch-2.0+-red.svg)](https://pytorch.org/)
+[![PyTorch](https://img.shields.io/badge/PyTorch-2.6+-blue.svg)](https://pytorch.org/)
 
 > **⚠️ Academic Research Project**: This project exists solely for academic purposes to explore and learn PyTorch internals. For production use, please use the official, well-maintained [**torch/tensordict**](https://github.com/pytorch/tensordict) library.