Added NGINX Unit to the Servers list

[artemkonev]

Added NGINX Unit (https://unit.nginx.org) to the list of servers supporting the ASGI specification.

Checklist

• [x] This project is explicitly related to ASGI.
• [x] The new list entry contains a project name, URL and description.

What is this project?

NGINX Unit - A polyglot app server that supports ASGI 3.0 for Python.

Do you know about other similar projects?

Yes.

If so, how is this one different?

Perhaps, the most notable difference is that Unit is not a Python-only app server. It's mostly written in C, dynamically configurable, and functions as a static server/proxy as well.

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[florimondmanca]

Thanks for this submission @artemkonev, reviewing this just now.

I think we should consider adding this to the list, yup :-)

Adding links to the relevant Starlette docs for reference: https://unit.nginx.org/howto/starlette/

[tippexs]

Hi @florimondmanca Just came across this PR again and wanted to ask if there is anything else you need from us? Would love to see NGINX Unit in the servers list :) Let me know if there is anything else we can do to make this happen.

[florimondmanca]

@tippexs Thanks for the heads up, I think this is ready to merge!