Tweak docs

Author: tomchristie

docs/topics/documenting-your-api.md

@@ -14,10 +14,12 @@ The most common way to document Web APIs today is to produce documentation that
 
 #### Django REST Swagger
 
-Marc Gibbon's [Django REST Swagger][django-rest-swagger] integrates REST framework with the [Swagger][swagger] API documentation tool.  The package produces well presented API documentation, and includes interactive tools for testing API endpoints.
+Marc Gibbons' [Django REST Swagger][django-rest-swagger] integrates REST framework with the [Swagger][swagger] API documentation tool.  The package produces well presented API documentation, and includes interactive tools for testing API endpoints.
 
 The pacakge is fully documented, well supported, and comes highly recommended.
 
+Django REST Swagger supports REST framework versions 2.3 and above.
+
 ![Screenshot - Django REST Swagger][image-django-rest-swagger]
 
 ---