Add documentation for tagging snippets

docs/reference/pages/model_recipes.rst

@@ -155,11 +155,11 @@ Using an example from the Wagtail demo site, here's what the tag model and the r
 
     from modelcluster.fields import ParentalKey
     from modelcluster.contrib.taggit import ClusterTaggableManager
-    from taggit.models import Tag, TaggedItemBase
-    ...
+    from taggit.models import TaggedItemBase
+
     class BlogPageTag(TaggedItemBase):
         content_object = ParentalKey('demo.BlogPage', related_name='tagged_items')
-    ...
+
     class BlogPage(Page):
         ...
         tags = ClusterTaggableManager(through=BlogPageTag, blank=True)

docs/topics/snippets.rst

@@ -169,3 +169,28 @@ These child objects are now accessible through the page's ``advert_placements``
   {% endfor %}
 
 
+Tagging snippets
+----------------
+
+Adding tags to snippets is very similar to adding tags to pages. The only difference is that :class:`taggit.manager.TaggableManager` should be used in the place of :class:`~modelcluster.contrib.taggit.ClusterTaggableManager`.
+
+.. code-block:: python
+
+    from modelcluster.fields import ParentalKey
+    from taggit.models import TaggedItemBase
+    from taggit.managers import TaggableManager
+
+    class AdvertTag(TaggedItemBase):
+        content_object = ParentalKey('demo.Advert', related_name='tagged_items')
+
+    @register_snippet
+    class Advert(models.Model):
+        ...
+        tags = TaggableManager(through=BlogPageTag, blank=True)
+
+        panels = [
+            ...
+            FieldPanel('tags'),
+        ]
+
+The :ref:`documentation on tagging pages <tagging>` has more information on how to use tags in views.