Fixed #19640 - Added inlineformset_factory to reference docs.

Thanks wim@ for the suggestion.

docs/ref/contrib/admin/index.txt

@@ -1520,8 +1520,8 @@ The ``InlineModelAdmin`` class adds:
 .. attribute:: InlineModelAdmin.form
 
     The value for ``form`` defaults to ``ModelForm``. This is what is passed
-    through to ``inlineformset_factory`` when creating the formset for this
-    inline.
+    through to :func:`~django.forms.models.inlineformset_factory` when
+    creating the formset for this inline.
 
 .. attribute:: InlineModelAdmin.extra
 

docs/ref/forms/models.txt

@@ -5,7 +5,7 @@ Model Form Functions
 .. module:: django.forms.models
    :synopsis: Django's functions for building model forms and formsets.
 
-.. method:: modelform_factory(model, form=ModelForm, fields=None, exclude=None, formfield_callback=None,  widgets=None)
+.. function:: modelform_factory(model, form=ModelForm, fields=None, exclude=None, formfield_callback=None,  widgets=None)
 
     Returns a :class:`~django.forms.ModelForm` class for the given ``model``.
     You can optionally pass a ``form`` argument to use as a starting point for
@@ -25,16 +25,27 @@ Model Form Functions
 
     See :ref:`modelforms-factory` for example usage.
 
-.. method:: modelformset_factory(model, form=ModelForm, formfield_callback=None, formset=BaseModelFormSet, extra=1, can_delete=False, can_order=False, max_num=None, fields=None, exclude=None)
+.. function:: modelformset_factory(model, form=ModelForm, formfield_callback=None, formset=BaseModelFormSet, extra=1, can_delete=False, can_order=False, max_num=None, fields=None, exclude=None)
 
     Returns a ``FormSet`` class for the given ``model`` class.
 
     Arguments ``model``, ``form``, ``fields``, ``exclude``, and
     ``formfield_callback`` are all passed through to
-    :meth:`~django.forms.models.modelform_factory`.
+    :func:`~django.forms.models.modelform_factory`.
 
     Arguments ``formset``, ``extra``, ``max_num``, ``can_order``, and
     ``can_delete`` are passed through to ``formset_factory``. See
     :ref:`formsets` for details.
 
     See :ref:`model-formsets` for example usage.
+
+.. function:: inlineformset_factory(parent_model, model, form=ModelForm, formset=BaseInlineFormSet, fk_name=None, fields=None, exclude=None, extra=3, can_order=False, can_delete=True, max_num=None, formfield_callback=None)
+
+    Returns an ``InlineFormSet`` using :func:`modelformset_factory` with
+    defaults of ``formset=BaseInlineFormSet``, ``can_delete=True``, and
+    ``extra=3``.
+
+    If your model has more than one :class:`~django.db.models.ForeignKey` to
+    the ``parent_model``, you must specify a ``fk_name``.
+
+    See :ref:`inline-formsets` for example usage.

docs/topics/forms/modelforms.txt

@@ -550,7 +550,7 @@ ModelForm factory function
 --------------------------
 
 You can create forms from a given model using the standalone function
-:class:`~django.forms.models.modelform_factory`, instead of using a class
+:func:`~django.forms.models.modelform_factory`, instead of using a class
 definition. This may be more convenient if you do not have many customizations
 to make::
 
@@ -857,6 +857,8 @@ primary key that isn't called ``id``, make sure it gets rendered.)
 
 .. highlight:: python
 
+.. _inline-formsets:
+
 Inline formsets
 ===============
 
@@ -881,7 +883,7 @@ a particular author, you could do this::
 
 .. note::
 
-    ``inlineformset_factory`` uses
+    :func:`~django.forms.models.inlineformset_factory` uses
     :func:`~django.forms.models.modelformset_factory` and marks
     ``can_delete=True``.
 
@@ -901,7 +903,8 @@ the following model::
         to_friend = models.ForeignKey(Friend)
         length_in_months = models.IntegerField()
 
-To resolve this, you can use ``fk_name`` to ``inlineformset_factory``::
+To resolve this, you can use ``fk_name`` to
+:func:`~django.forms.models.inlineformset_factory`::
 
     >>> FriendshipFormSet = inlineformset_factory(Friend, Friendship, fk_name="from_friend")