bpo-43200: Fix link to shutil.copy() in the shutil doc (GH-24505)


Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
diff --git a/Doc/library/shutil.rst b/Doc/library/shutil.rst
index 435787c..d5080da 100644
--- a/Doc/library/shutil.rst
+++ b/Doc/library/shutil.rst
@@ -443,8 +443,9 @@
 Platform-dependent efficient copy operations
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Starting from Python 3.8 all functions involving a file copy (:func:`copyfile`,
-:func:`copy`, :func:`copy2`, :func:`copytree`, and :func:`move`) may use
+Starting from Python 3.8, all functions involving a file copy
+(:func:`copyfile`, :func:`~shutil.copy`, :func:`copy2`,
+:func:`copytree`, and :func:`move`) may use
 platform-specific "fast-copy" syscalls in order to copy the file more
 efficiently (see :issue:`33671`).
 "fast-copy" means that the copying operation occurs within the kernel, avoiding