Documentation/project structure issue with reCaptcha

[emorozov]

To use recatpcha template tag library from django-antispam under Django 2.0.3, antispam.recaptcha should be added explicitly to INSTALLED_APPS in order for Django to see recaptcha template tags.

This should be reflected in the documentation or the project should be structured so that adding antispam to the list of installed apps makes the template tag library available by default.