add Django for APIs 5th edition, remove Django 4 and less books

README.md

@@ -458,20 +458,11 @@ _A short list of Python packages that work well with Django._
 For a complete listing of in-print books check out [DjangoBook.com](https://djangobook.com/).
 
 _Django 5_
+- [Django for APIs, Fifth Edition](https://learndjango.com/courses/django-for-apis/)
 - [Boost Your Django DX](https://adamchainz.gumroad.com/l/byddx)
 - [Django 5 By Example](https://www.packtpub.com/en-us/product/django-5-by-example-9781805125457)
 - [Django in Action](https://www.manning.com/books/django-in-action)
-- [Django for Beginners, Fifth Edition](https://djangoforbeginners.com/)
-
-_Django 4_
-- [Django for APIs: Build web APIs with Python and Django](https://djangoforapis.com/)
-- [Django for Professionals: Production websites with Python and Django](https://djangoforprofessionals.com/)
-- [Understand Django: An Exploration of the Django Web Framework](https://www.mattlayman.com/understand-django/)
-
-_Django 3_
-- [Speed Up Your Django Tests](https://adamj.eu/tech/2020/05/04/new-book-speed-up-your-django-tests/)
-- [Two Scoops of Django 3.x: Best Practices for the Django Web Framework](https://www.feldroy.com/books/two-scoops-of-django-3-x)
-- [A Wedge of Django: Covers Python 3.8 and Django 3.x](https://www.feldroy.com/books/a-wedge-of-django)
+- [Django for Beginners, Fifth Edition](https://learndjango.com/courses/django-for-beginners/)
 
 ## Hosting