code: def documentation(self, request):
          
          self.update_urls(request)
          context = {
              "resources": sorted(self.resource_map.items())
          }
          return render(request, "jsonapi/index.html", context)
docs: Resource documentation.
  
          .. versionadded:: 0.7.2
              Content-Type check
  
          :return django.http.HttpResponse