Update README.md

Move to ZeroGPU: bf16 on cuda + @spaces.GPU on streaming handlers

Link model (models: codelion/dhara-250m) for Spaces-using-this-model widget

gradio SDK 6.14.0 (proven to import with hub 1.16) + transformers 5.5 + messages-format app

Switch to Docker SDK; pip-resolved transformers==5.5.0 + gradio (fixes tokenizer/HfFolder)

Pin coherent stack (py3.12, gradio4.44, transformers<5, hub<1) to fix HfFolder/audioop; title ChatDhara

dhara-chat tri-mode CPU demo

initial commit