Added all the added classes in views.py to the url patterns

enzosalvador_reading/bookshelf/urls.py

 from django.urls import path
-from .views import HomepageView, BooksListView, BooksDetailView, AuthorsListView, AuthorsDetailView
+from .views import HomepageView, BooksListView, BooksDetailView, AuthorsListView, AuthorsDetailView, BookCreateView, BookUpdateView, AuthorCreateView, AuthorUpdateView
 
 urlpatterns = [
     path('home/', HomepageView, name='home'),
@@ -7,4 +7,8 @@ urlpatterns = [
     path('books/<int:pk>/details/', BooksDetailView.as_view(), name='book-details'),
     path('authors/', AuthorsListView.as_view(), name='authors-list'),
     path('authors/<int:pk>/details/', AuthorsDetailView.as_view(), name='author-details'),
+    path('books/add/', BookCreateView.as_view(), name='book-add'),
+    path('authors/add/', AuthorCreateView.as_view(), name='author-add'),
+    path('books/<int:pk>/edit/', BookUpdateView.as_view(), name='book-update'),
+    path('authors/<pk>/edit/', AuthorUpdateView.as_view(), name='author-update'),
 ]
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