[3.8] bpo-34003: Re-add versionchanged entry in csv docs (GH-20657) (GH-20771)



Follow-up to GH-8014
(cherry picked from commit 7aed0524d4129766a6032326949ef7f91f6f6dfc)


Co-authored-by: Éric Araujo <merwok@netwok.org>

Automerge-Triggered-By: @merwok
diff --git a/Doc/library/csv.rst b/Doc/library/csv.rst
index 61d3982..7a72c26 100644
--- a/Doc/library/csv.rst
+++ b/Doc/library/csv.rst
@@ -167,6 +167,9 @@
    All other optional or keyword arguments are passed to the underlying
    :class:`reader` instance.
 
+   .. versionchanged:: 3.6
+      Returned rows are now of type :class:`OrderedDict`.
+
    .. versionchanged:: 3.8
       Returned rows are now of type :class:`dict`.