created BookInLine

lancedamalerio_reading/bookshelf/admin.py

 from django.contrib import admin
 from .models import Author, Book
 
+class BookInLine(admin.TabularInline):
+    model = Book
+
 #admin panel for Author model
 
 class AuthorAdmin(admin.ModelAdmin):
     model = Author 
     list_display = ("first_name", "last_name", "age", "nationality", "bio",)
     search_fields = ("first_name", "last_name",)
+    inlines = [BookInLine]
 
 #admin panel for Book model