Add url resolutions for all views for ingredients model

froyo/urls.py

 from django.conf.urls import url, include
 
+from .views import ingredients_detail
+from .views import ingredients_list
+from .views import ingredients_create
+from .views import ingredients_update
+
+from .views import recipes_detail
+from .views import recipes_list
+from .views import recipes_create
+from .views import recipes_update
+
+from .views import orders_detail
+from .views import orders_list
+from .views import orders_create
+from .views import orders_update
+
 urlpatterns = [
-        url(r'', placeholder_view),
-]
+        url(r'ingredients/detail', ingredients_detail, name='ingredients_detail'),
+        url(r'ingredients/list', ingredients_list, name='ingredients_list'),
+        url(r'ingredients/create', ingredients_create, name='ingredients_create'),
+        url(r'ingredients/update', ingredients_update, name='ingredients_update'),
+ ]