[docs] [issue37176] super() docs don't say what super() does

Raymond Hettinger <raymond.hettinger@gmail.com> added the comment:

It only says "Return a proxy object that delegates method calls to a parent or sibling class of type" and then gives a bunch of use cases and examples."

That wording seems very reasonable to me. ---------- nosy: +rhettinger _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue37176> _______________________________________