Readme updates (#54)

* improving Readme for release

* small update

* fix alignment

* simplify

* adding acknowledgements

* adding arxiv link

Author: EiffL

README.md

@@ -5,6 +5,7 @@
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![PyTorch](https://img.shields.io/badge/PyTorch-≥2.4.0-ee4c2c.svg)](https://pytorch.org/)
 [![Tests](https://github.com/PolymathicAI/AION/actions/workflows/test.yaml/badge.svg)](https://github.com/PolymathicAI/AION/actions/workflows/test.yaml)
+[![arXiv](https://img.shields.io/badge/arXiv-2510.17960-b31b1b.svg)](https://arxiv.org/abs/2510.17960)
 [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/PolymathicAI/AION/blob/main/notebooks/Tutorial.ipynb)
 [![Model on HF](https://img.shields.io/badge/%F0%9F%A4%97%20Hugging%20Face-Model-yellow)](https://huggingface.co/polymathic-ai/aion-base)