docs: mention creating models manually

docs/advanced.rst

@@ -46,8 +46,41 @@ There are a few solutions to this problem:
    Note that the same `ORM restrictions <https://docs.djangoproject.com/en/dev/topics/db/queries/#spanning-multi-valued-relationships>`_ apply here.
 
 
-Adding translated fields to an existing model:
-----------------------------------------------
+Constructing the translations model manually
+--------------------------------------------
+
+It's also possible to create the translated fields model manually:
+
+.. code-block:: python
+
+    from django.db import models
+    from parler.models import TranslatableModel, TranslatedFieldsModel
+    from parler.fields import TranslatedField
+
+
+    class MyModel(TranslatableModel):
+        title = TranslatedField()  # Optional, explicitly mention the field
+
+        class Meta:
+            verbose_name = _("MyModel")
+
+        def __unicode__(self):
+            return self.title
+
+
+    class MyModelTranslation(TranslatedFieldsModel):
+        master = models.ForeignKey(MyModel, related_name='translations', null=True)
+        title = models.CharField(_("Title"), max_length=200)
+
+        class Meta:
+            verbose_name = _("MyModel translation")
+
+This has the same effect, but also allows to to override
+the :func:`~django.db.models.Model.save` method, or add new methods yourself.
+
+
+Adding translated fields to an existing model
+---------------------------------------------
 
 Create a proxy class::