добавил видимость других страниц

SusMarket/urls.py

@@ -15,10 +15,10 @@ Including another URLconf
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path
-from SusMarketBackend import views
+from django.urls import path, re_path
+from django.views.generic import TemplateView
 
 urlpatterns = [
     path('admin/', admin.site.urls),
-    path('', views.index, name='index')
+    re_path('^.*$', TemplateView.as_view(template_name='index.html'))
 ]