New installation instruction using uv

[sl0thm4n]

The installation on the README.md did not quite do the job for me, so I ended up doing the followings:

uv init
uv venv .venv --python 3.11 --seed
uv pip install torch==2.1.2 torchvision==0.16.2 --index-url https://download.pytorch.org/whl/cu118
uv pip install --upgrade -r requirements.txt
uv pip install xformers==0.0.23.post1 --index-url https://download.pytorch.org/whl/cu118
uv pip install 'numpy<2'
uv run accelerate config

Hope this helps. Cheers 🍻