feat: provide instructions on how community members can wrap models for this project

[PaulConyngham]

as more and more models come out, would be great to see instructions on how we can go about wrapping the model to work with this framework and adding them back

[kemingy]

The main LLM inference code is in https://github.com/tensorchord/modelz-llm/blob/main/src/modelz_llm/model.py. To add a new model, you need to check https://github.com/tensorchord/llmspec/blob/main/llmspec/model_info.py and add the corresponding docker image in this repo.