bpo-42135: Deprecate implementations of find_module() and find_loader() (GH-25169)

diff --git a/Doc/library/importlib.rst b/Doc/library/importlib.rst
index 6515cdb..50297e0 100644
--- a/Doc/library/importlib.rst
+++ b/Doc/library/importlib.rst
@@ -257,6 +257,10 @@
          Returns ``None`` when called instead of raising
          :exc:`NotImplementedError`.
 
+      .. deprecated:: 3.10
+         Implement :meth:`MetaPathFinder.find_spec` or
+         :meth:`PathEntryFinder.find_spec` instead.
+
 
 .. class:: MetaPathFinder
 
@@ -265,6 +269,9 @@
 
    .. versionadded:: 3.3
 
+   .. versionchanged:: 3.10
+      No longer a subclass of :class:`Finder`.
+
    .. method:: find_spec(fullname, path, target=None)
 
       An abstract method for finding a :term:`spec <module spec>` for
@@ -313,11 +320,13 @@
    An abstract base class representing a :term:`path entry finder`.  Though
    it bears some similarities to :class:`MetaPathFinder`, ``PathEntryFinder``
    is meant for use only within the path-based import subsystem provided
-   by :class:`PathFinder`. This ABC is a subclass of :class:`Finder` for
-   compatibility reasons only.
+   by :class:`importlib.machinery.PathFinder`.
 
    .. versionadded:: 3.3
 
+   .. versionchanged:: 3.10
+      No longer a subclass of :class:`Finder`.
+
    .. method:: find_spec(fullname, target=None)
 
       An abstract method for finding a :term:`spec <module spec>` for
@@ -363,7 +372,8 @@
    .. method:: invalidate_caches()
 
       An optional method which, when called, should invalidate any internal
-      cache used by the finder. Used by :meth:`PathFinder.invalidate_caches`
+      cache used by the finder. Used by
+      :meth:`importlib.machinery.PathFinder.invalidate_caches`
       when invalidating the caches of all cached finders.
 
 
@@ -1193,6 +1203,9 @@
 
       Attempt to find the loader to handle *fullname* within :attr:`path`.
 
+      .. deprecated:: 3.10
+         Use :meth:`find_spec` instead.
+
    .. method:: invalidate_caches()
 
       Clear out the internal cache.