[Docs] Update docker.md with HF_TOKEN, new model, and podman fix

[mgoin]

Previously if you ran the podman command, it would fail because it doesn't default to dockerhub as a registry

Error: short-name "vllm/vllm-openai:latest" did not resolve to an alias and no unqualified-search registries are defined in "/etc/containers/registries.conf"

But there are other issues like gpu passthrough.

[gemini-code-assist]

Code Review

This pull request updates the Docker documentation by fixing an issue with the podman command, making the Hugging Face token handling consistent, and changing the example model. While the podman fix and token handling are good improvements, I've identified a critical issue: the new example model name appears to be invalid, which would cause the documented commands to fail. My review includes suggestions to use a valid model to ensure the examples are runnable for users.

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[hmellor]

LGTM thanks!

There is also #19236 which attempts to solve the registry issue, do you prefer modifying the podman command instead of modifying the Dockerfile?

[mgoin]

I think we have to do both since the change here is modifying the command to fetch the prebuilt image from dockerhub, and the change you linked is just to fix podman building the image from source