gh-123570: Add link to `weakref.ref` from `weakref_slot` docs in `dataclasses` (...

diff --git a/Doc/library/dataclasses.rst b/Doc/library/dataclasses.rst
index 324403f87b9f916454d2eb5031ac8bf4885d66c7..cfca11afbd2e41cf4a07685a28273804889f30a2 100644 (file)
--- a/Doc/library/dataclasses.rst
+++ b/Doc/library/dataclasses.rst
@@ -215,7 +215,8 @@ Module contents
 
    - *weakref_slot*: If true (the default is ``False``), add a slot
      named "__weakref__", which is required to make an instance
-     weakref-able.  It is an error to specify ``weakref_slot=True``
+     :func:`weakref-able <weakref.ref>`.
+     It is an error to specify ``weakref_slot=True``
      without also specifying ``slots=True``.
 
     .. versionadded:: 3.11