Move installation.rst to installation/*.rst by aclark4life · Pull Request #7832 · python-pillow/Pillow

@hugovk Hmmm. Possibly if we add redirects on RTD according to pypa/packaging.python.org#1401 (comment) (with the core issue being whether or not link fragments are handled by the HTTP specification.) At that point, the discussion becomes more about weighing the benefit of adding navigation links to the installation section sidebar vs. breaking SO links, or SEO or whatever. I'm pretty happy with adding sphinx-reredirect and configuring RTD redirects as needed (assuming that works as expected, which I'm not inclined to believe it will and also feels a bit "heavy") and calling it a day, but that's just me. 🤷