Update to angular 18 (#24)

Author: anhptk

README.md

@@ -3,7 +3,7 @@
 > ### Django REST Framework + Angular codebase containing real world examples (CRUD, auth, advanced patterns, etc) that adheres to the [RealWorld](https://github.com/gothinkster/realworld) spec and API.
 
 
-### [Demo](https://demo.realworld.io/)    [RealWorld](https://github.com/gothinkster/realworld)
+### [Demo](https://thanhdev.pythonanywhere.com/)    [RealWorld](https://github.com/gothinkster/realworld)
 
 
 This codebase was created to demonstrate a fully fledged fullstack application built with **Django REST Framework + Angular** including CRUD operations, authentication, routing, pagination, and more.