pandas web and docs structure
The site served by `web` assumes that the docs are served from a `/docs/` directory relative to the root. The content of that directory should be equivalent to what we have at https://pandas.pydata.org/pandas-docs/version/1.0.0/, so `/version/1.0.0/` or `/version/stable/`.

Should I symlink `/docs/` to `/version/stable/`? Does that mess with canonical urls?

cc @datapythonista.