[docs] [issue34118] Fix some class entries in 'Built-in Functions'

Change by Serhiy Storchaka <storchaka+cpython@gmail.com>: ---------- title: Fix some class entries entries in 'Built-in Functions' -> Fix some class entries in 'Built-in Functions' _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue34118> _______________________________________