Added missing / in urls.py

gabigarrero_reading/bookshelf/urls.py

@@ -9,7 +9,7 @@ urlpatterns = [
     path('books/', BooksListView.as_view(), name = 'book-list'),
     path('books/<int:pk>/details', BooksDetailView.as_view(), name = 'books-details'),
     path('books/add', BooksCreateView.as_view(), name = 'add-book'),
-    path('books/<int:pk>edit', BooksUpdateView.as_view(), name = 'edit-book'),
+    path('books/<int:pk>/edit', BooksUpdateView.as_view(), name = 'edit-book'),
     path('authors/', AuthorListView.as_view(), name = 'author-list'),
     path('authors/<int:pk>/details', AuthorDetailView.as_view(), name = 'author-details'),
     path('authors/add', AuthorCreateView.as_view(), name = 'add-author'),