docs(README): enhance documentation overview and structure

- Add project logo and centered title
- Update badge styles to 'for-the-badge'
- Expand documentation overview section
- Include content structure details
- Improve README readability and professionalism

Author: fulleni

README.md

@@ -1,21 +1,39 @@
-# Flutter News App - Documentation
+<div align="center">
+  <img src="https://avatars.githubusercontent.com/u/202675624?s=400&u=dc72a2b53e8158956a3b672f8e52e39394b6b610&v=4" alt="Flutter News App Toolkit Logo" width="220">
+  <h1>Flutter News App Documentation</h1>
+  <p><strong>The official documentation website for the Flutter News App Full Source Code Toolkit.</strong></p>
+</div>
+
+<p align="center">
+  <a href="https://flutter-news-app-full-source-code.github.io/docs/"><img src="https://img.shields.io/badge/LIVE_DOCS-VIEW-slategray?style=for-the-badge" alt="Live Docs: View"></a>
+  <a href="https://github.com/flutter-news-app-full-source-code"><img src="https://img.shields.io/badge/MAIN_PROJECT-BROWSE-purple?style=for-the-badge" alt="Main Project: Browse"></a>
+</p>
 
-This repository contains the source code for the official documentation website for the **[Flutter News App - Full Source Code Toolkit](https://github.com/flutter-news-app-full-source-code)**.
+This repository contains the source code for the official documentation website for the [**Flutter News App Full Source Code Toolkit**](https://github.com/flutter-news-app-full-source-code). Built with [Astro](https://astro.build/), this site provides comprehensive guides, tutorials, and API references to help developers understand, set up, customize, and deploy the entire toolkit. It serves as a central knowledge base, ensuring that all components—the Flutter mobile app, web dashboard, and Dart Frog backend API—are well-documented and easy to navigate.
 
-<p>
-<a href="https://flutter-news-app-full-source-code.github.io/docs/"><img src="https://img.shields.io/badge/LIVE_DOCS-VIEW-green?style=for-the-badge" alt="Live Docs: View"></a>
-<a href="https://github.com/flutter-news-app-full-source-code"><img src="https://img.shields.io/badge/MAIN_PROJECT-BROWSE-purple?style=for-the-badge" alt="Main Project: Browse"></a>
-</p>
+## ⭐ Documentation Overview: Your Guide to the Toolkit
+
+This documentation website offers a structured and detailed overview of the Flutter News App Full Source Code Toolkit.
+
+<details>
+<summary><strong>📚 Content & Structure</strong></summary>
 
----
+### 📖 Comprehensive Guides
+- **Getting Started:** Essential information for setting up your development environment, understanding the core philosophy, and architectural overview.
+- **Mobile Client:** Detailed guides for the Flutter mobile application, covering architecture, features, deployment (Android/iOS), and customization.
+- **Web Dashboard:** Comprehensive documentation for the Flutter web dashboard, including architecture, features, deployment, and management manuals.
+- **API Server:** In-depth information on the Dart Frog backend API, its architecture, features (authentication, data management, email service), deployment, and configuration.
+- **Customization:** Guides on branding, theming, and extending the toolkit to fit your specific needs.
 
-## About This Repository
+### 🛠️ Technical Foundation
+- **Built with Astro:** The documentation site itself is powered by [Astro](https://astro.build/), a modern static site generator, ensuring fast performance and maintainability.
+- **Clear Navigation:** Organized into logical sections and pages for easy discovery of information.
 
-This site is built using **[Astro](https://astro.build/)**, a modern static site generator. Its purpose is to provide comprehensive guides, tutorials, and API references for our product.
+> **💡 Your Advantage:** This documentation provides a clear, organized, and comprehensive resource for the Flutter News App Toolkit. It simplifies the learning curve, accelerates development by offering detailed setup and customization guides, and ensures you have all the information needed to successfully build and deploy your news application.
 
-This repository is for the documentation content and its website structure only. The source code for the actual software is located in the main organization.
+</details>
 
-## Running the Documentation Site Locally
+## 🚀 Getting Started: Running Locally
 
 To preview changes or contribute to the documentation, you can run a local development server.