pythongh-118055: Update the finder glossary entry (pythonGH-118278)

Doc/glossary.rst

@@ -425,11 +425,11 @@ Glossary
  An object that tries to find the :term:`loader` for a module that is
  being imported.
 
- Since Python 3.3, there are two types of finder: :term:`meta path finders
+ There are two types of finder: :term:`meta path finders
  <meta path finder>` for use with :data:`sys.meta_path`, and :term:`path
  entry finders <path entry finder>` for use with :data:`sys.path_hooks`.
 
- See :pep:`302`, :pep:`420` and :pep:`451` for much more detail.
+ See :ref:`importsystem` and :mod:`importlib` for much more detail.
 
  floor division
  Mathematical division that rounds down to nearest integer. The floor