Remove old GGUF (phi-3-mini-4k-instruct.Q4_K_M.gguf), keeping phi3-sysadmin-Q4_K_M.gguf

Update model card: merge full GGUF card + lalatendu card into unified README

Add training notebook (phi3_finetune.ipynb) — QLoRA via Unsloth on T4 GPU

Add model card with disclaimer, training details, and usage examples

Upload phi3-sysadmin-Q4_K_M.gguf with huggingface_hub

Upload README.md with huggingface_hub

Upload phi3-sysadmin GGUF model (Q4_K_M quantized Phi-3 Mini for Ollama)

initial commit