bpo-34379: Doc: Move note for json.dump (GH-8730)

diff --git a/Doc/library/json.rst b/Doc/library/json.rst
index d65fb3f..8ce493d 100644
--- a/Doc/library/json.rst
+++ b/Doc/library/json.rst
@@ -188,6 +188,11 @@
    .. versionchanged:: 3.6
       All optional parameters are now :ref:`keyword-only <keyword-only_parameter>`.
 
+   .. note::
+
+      Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol,
+      so trying to serialize multiple objects with repeated calls to
+      :func:`dump` using the same *fp* will result in an invalid JSON file.
 
 .. function:: dumps(obj, *, skipkeys=False, ensure_ascii=True, \
                     check_circular=True, allow_nan=True, cls=None, \
@@ -200,12 +205,6 @@
 
    .. note::
 
-      Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol,
-      so trying to serialize multiple objects with repeated calls to
-      :func:`dump` using the same *fp* will result in an invalid JSON file.
-
-   .. note::
-
       Keys in key/value pairs of JSON are always of the type :class:`str`. When
       a dictionary is converted into JSON, all the keys of the dictionary are
       coerced to strings. As a result of this, if a dictionary is converted