Fixes an import statement in chapter 5 of the tutorial. (encode#6267)

docs/tutorial/5-relationships-and-hyperlinked-apis.md

@@ -106,7 +106,7 @@ If we're going to have a hyperlinked API, we need to make sure we name our URL p
 
 After adding all those names into our URLconf, our final `snippets/urls.py` file should look like this:
 
- from django.conf.urls import url, include
+ from django.urls import path
  from rest_framework.urlpatterns import format_suffix_patterns
  from snippets import views