made edits in admin.py

janang_reading/bookshelf/admin.py

 from django.contrib import admin
-from.models import Author, Books
+from .models import Author, Books
 
 # Register your models here.
 class AuthorAdmin(admin.ModelAdmin):
     model = Author
     list_display = ("first_name", "last_name", "age", "nationality", "bio",)
     search_fields = ("last_name", "nationality",)
-    list_filter = ("last_name", "nationality")
+    list_filter = ("last_name", "nationality",)
 
 class BooksAdmin(admin.ModelAdmin):
     model = Books
     list_display = ("title", "author", "publisher", "year_published", "ISBN", "blurb",)
     search_fields = ("title", "author", "publisher", "year_published", "ISBN",)
-    list_filter = ("title", "author", "publisher", "year_published")
+    list_filter = ("title", "author", "publisher", "year_published",)
 
 admin.site.register(Author, AuthorAdmin)
 admin.site.register(Books, BooksAdmin)
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