Missing documentation reference about {{formset_form}}

In current documentation version, there is no example or API reference about the {{formset_form}} variable available in layout to get access to the current form instance (like the {{forloop}} simulator is).
To my mind, it should be included.

https://github.com/django-crispy-forms/django-crispy-forms/search?q=formset_form&unscoped_q=formset_form

Start by searching the current documentation for the `forloop` simulator and `formset_form`, using the linked repository search as an entry point. Add an example or API reference explaining access to the current form instance, and verify that the documentation clearly covers the variable's availability in layouts.

Written by the indexing model from the issue text.