Improvements to documentation and README

[rlouf]

No description provided.

[viktor-ferenczi]

The doc is still wrong:

• This command installs vLLM 0.1.2 for me, not the latest 0.2.7: pip install outlines[serve]
• The version condition needs to be quoted, otherwise the > works as a redirect to file: pip install pydantic>=2.0

[viktor-ferenczi]

After uninstalling vllm (0.1.2), upgrading pydantic, installing vllm 0.2.7 and upgrading outlines (the command in the doc installed 0.0.19) I get this error:

vllm 0.2.7 requires pydantic==1.10.13, but you have pydantic 2.5.3 which is incompatible.
Successfully installed outlines-0.0.24 pydantic-2.5.3

However, vLLM works with outlines.serve.server in this state nevertheless. Maybe the vLLM dependencies are wrong.

[rlouf]

vLLM just bumped the Pydantic version requirement: vllm-project/vllm#2531

[viktor-ferenczi]

What about the other issue, that pip install outlines[serve] installs old vLLM (0.1.2) and outline (0.0.19)?