Fix compression ratio (10.7x -> 32x) and Int4 recall numbers, add GitHub link, clarify E8 Shape Memory is a separate project

docs: add E8 Shape Memory section

docs: add pitch deck link

fix: upgrade to Gradio 5.x for Python 3.13 audioop compatibility

fix: use valid gradio sdk_version 4.44.1

Upload README.md with huggingface_hub

initial commit