[Doc] [Serve] Edit grammar/usage/organization for HTTP adapters page (#26969)
[Doc] [Serve] Edit grammar/usage/organization for HTTP adapters page (#26969)

Moves FastAPI into its own section instead of appearing in a duplicated note.

Co-authored-by: simon-mo <d38923444bfe8f156c122208cc8184de02ddd1e3@hey.com>
ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray