docs: add badges to the main readme file

README.md

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 ![design-pattern-cover](assets/cover.jpg)
 
+[![Automated Tests Passing](https://github.com/vahidvdn/realworld-design-patterns/actions/workflows/ci.yml/badge.svg)](https://github.com/vahidvdn/realworld-design-patterns/actions/workflows/ci.yml)
+![Nx](https://img.shields.io/badge/Powered%20by-Nx-0ca5e9)
+![License](https://img.shields.io/badge/License-MIT-blue.svg)
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 # Real World Design Patterns 🗺️
 Explore real-world scenarios and best practices for design patterns in this comprehensive repository. Elevate your software design skills with practical examples and insightful discussions. ✨ This workspace has been generated by [Nx, Smart Monorepos · Fast CI.](https://nx.dev) ✨