created path for authors/add, a page where you can add an author

lancedamalerio_reading/bookshelf/urls.py

 from django.urls import path
-from .views import HomeView, BookListView, BookDetailView, AuthorListView, AuthorDetailView, BookCreateView
+from .views import (HomeView, BookListView, BookDetailView, AuthorListView, AuthorDetailView, 
+                    BookCreateView, AuthorCreateView)
 
 #url for bookshelf
 
@@ -10,6 +11,8 @@ urlpatterns = [
     path('books/add/', BookCreateView.as_view(), name="new-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="new-author"),
+
 ]