Closes #20509: Merged documentation update from 3.3.
diff --git a/Doc/library/logging.config.rst b/Doc/library/logging.config.rst
index 8c15ee2..5fb1b7a 100644
--- a/Doc/library/logging.config.rst
+++ b/Doc/library/logging.config.rst
@@ -80,7 +80,9 @@
 
 .. function:: fileConfig(fname, defaults=None, disable_existing_loggers=True)
 
-   Reads the logging configuration from a :mod:`configparser`\-format file.
+   Reads the logging configuration from a :mod:`configparser`\-format file. The
+   format of the file should be as described in
+   :ref:`logging-config-fileformat`.
    This function can be called several times from an application, allowing an
    end user to select from various pre-canned configurations (if the developer
    provides a mechanism to present the choices and load the chosen