Update README.md

Author: eadwinCode

README.md

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 # Django Ninja Extra
 
-## Overview
-
 Django Ninja Extra is a powerful extension for [Django Ninja](https://django-ninja.rest-framework.com) that enhances your Django REST API development experience. It introduces class-based views and advanced features while maintaining the high performance and simplicity of Django Ninja. Whether you're building a small API or a large-scale application, Django Ninja Extra provides the tools you need for clean, maintainable, and efficient API development.
 
 ## Features