Keep imports sorted correctly

Use two separate conditionals for Django version-specific imports
in order for imports to show in correct sort order.

project_name/urls.py

@@ -1,6 +1,7 @@
 from django.conf import settings
-{% if django_version >= "2" %}from django.urls import include, path{% else %}from django.conf.urls import include, url{% endif %}
+{% if django_version < "2" %}from django.conf.urls import include, url{% endif %}
 from django.conf.urls.static import static
+{% if django_version >= "2" %}from django.urls import include, path{% endif %}
 from django.views.generic import TemplateView
 
 from django.contrib import admin