[docs] Wrong references to deprecated find_module instead of find_spec (issue 23936)

[vadmium+py at gmail.com]

https://bugs.python.org/review/23936/diff/16097/Doc/glossary.rst
File Doc/glossary.rst (right):

https://bugs.python.org/review/23936/diff/16097/Doc/glossary.rst#newcode312
Doc/glossary.rst:312: implement at least one of the methods
:meth:`find_spec`,
Which find_spec()? MetaPathFinder.find_spec() or
PathEntryFinder.find_spec(). Or is the assumed signature such that the
differences do not matter?

https://bugs.python.org/review/23936/diff/16097/Doc/glossary.rst#newcode313
Doc/glossary.rst:313: :meth:`find_loader` or :meth:`find_module`.
Perhaps linking to :meth:`~importlib.abc.PathEntryFinder.find_loader`
and :meth:`~importlib.abc.Finder.find_module` would be appropriate here?

https://bugs.python.org/review/23936/diff/16097/Doc/library/sys.rst
File Doc/library/sys.rst (right):

https://bugs.python.org/review/23936/diff/16097/Doc/library/sys.rst#newcode782
Doc/library/sys.rst:782: A list of :term:`meta path finder` objects that
have their :meth:`find_spec`
:meth:`~importlib.abc.MetaPathFinder.find_spec`; also twice below

https://bugs.python.org/review/23936/