Add template example

Author: gforcada

docs/classic-ui/images.md

@@ -300,6 +300,14 @@ scale_util = api.content.get_view("images", context, request)
 tag = scale_util.picture("image", scale="larger", picture_variant="large")
 ```
 
+The same can be done from a template;
+
+```xml
+<div tal:define="scale_view context/@@images">
+  <img tal:replace="structure python:scale_view.picture('image', scale='larger', picture_variant='large'" />
+</div>
+```
+
 (classic-ui-images-responsive-image-support-picture-variants)=
 
 ### `picture` variants