Remove recommendation for DRF Docs

Since DRF Docs is not compatible with the latest version of DRF (or Django?; related issue: manosim/django-rest-framework-docs#180) and the latest release is almost 3 years ago I suggest to remove the recommendation for this package.

docs/topics/documenting-your-api.md

@@ -201,8 +201,6 @@ This also translates into a very useful interactive documentation viewer in the
 
 Features include customizing the template with your branding, settings for hiding the docs depending on the environment and more.
 
-Both this package and Django REST Swagger are fully documented, well supported, and come highly recommended.
-
 ![Screenshot - DRF docs][image-drf-docs]
 
 ---
@@ -215,7 +213,7 @@ Django REST Swagger supports REST framework versions 2.3 and above.
 
 Mark is also the author of the [REST Framework Docs][rest-framework-docs] package which offers clean, simple autogenerated documentation for your API but is deprecated and has moved to Django REST Swagger.
 
-Both this package and DRF docs are fully documented, well supported, and come highly recommended.
+This package is fully documented, well supported, and comes highly recommended.
 
 ![Screenshot - Django REST Swagger][image-django-rest-swagger]