Added URLS for bookcreateview and authorcreateview

reading/bookshelf/urls.py

 # about/urls.py
 from django.urls import path
 
-from .views import (home_view, AuthorListView, BookListView, BookDetailView, AuthorDetailView)
+from .views import (home_view, AuthorListView, BookListView, BookDetailView, AuthorDetailView, BookCreateView, AuthorCreateView)
 
 urlpatterns = [
     path('home', home_view, name='index'),
@@ -9,6 +9,8 @@ urlpatterns = [
     path('authors', AuthorListView.as_view(), name='author-list'),
     path('books/<int:pk>/details', BookDetailView.as_view(), name='books-details'),
     path('authors/<int:pk>/details', AuthorDetailView.as_view(), name='authors-details'),
+    path('books/add', BookCreateView.as_view(), name='books-create'),
+    path('authors/add', AuthorCreateView.as_view(), name='authors-create'),
 ]
 
 app_name = "bookshelf" # for proper namespacing in urls, otherwise will result in errors
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