Move GGUF to dedicated repos, add GGUF section linking to collection

Add GGUF quantized models (BF16, Q8_0, Q4_K_M) and update README with GGUF usage section

Update README.md

Improve model card: add architecture diagram, performance metrics, quick start, environmental impact

Upload README.md with huggingface_hub

Upload README.md with huggingface_hub

Upload README.md with huggingface_hub

initial commit