Add project documentation and update README

Added detailed documentation files for code of conduct, contributing guidelines, core concepts, features, and project structure in the documentation/ directory. Updated README.md to reference new documentation, expand feature descriptions, and clarify setup instructions.

README.md

@@ -2,15 +2,19 @@
 
 ![Nebula Logo](assets/images/Logos/Nebula-Logo.svg)
 
-A customizable and privacy-focused web browser built with Electron.
+A customizable and privacy-focused web browser built with Electron. Nebula is designed to be a lightweight, secure, and user-friendly browser with a focus on performance and privacy.
 
 ## Features
 
 *   **Privacy Control:** Easily clear your browsing data, including history, cookies, and cache.
 *   **Tab Management:** Open new tabs, and manage them efficiently.
 *   **Bookmarks:** Save your favorite sites.
+*   **History:** Keeps track of your browsing and search history.
+*   **Performance Monitoring:** Built-in tools to monitor application performance.
+*   **GPU Acceleration Control:** Advanced settings to manage GPU acceleration and troubleshoot rendering issues.
+*   **Cross-Platform:** Runs on Windows, macOS, and Linux.
 
-
+[**Learn more about Nebula's features.**](documentation/FEATURES.md)
 
 ## Getting Started
 
@@ -28,9 +32,9 @@ A customizable and privacy-focused web browser built with Electron.
     ```sh
     cd NebulaBrowser
     ```
-3.  Install Electron:
+3.  Install dependencies:
     ```sh
-    npm install --save-dev electron@latest
+    npm install
     ```
 
 ### Running the Application
@@ -51,6 +55,30 @@ npm run dist
 
 This will create a distributable file in the `dist` directory.
 
+## Project Structure
+
+An overview of the project's structure. For a more detailed explanation, please see the [Project Structure documentation](documentation/PROJECT_STRUCTURE.md).
+
+-   `main.js`: The main entry point for the Electron application.
+-   `renderer/`: Contains all the front-end files.
+-   `preload.js`: Bridges the main and renderer processes.
+-   `performance-monitor.js`: Module for monitoring performance.
+-   `gpu-config.js` & `gpu-fallback.js`: Modules for managing GPU settings.
+-   `assets/`: Contains static assets.
+-   `documentation/`: Contains additional documentation.
+
+## Core Concepts
+
+Nebula is built on several core concepts that are essential to understanding how it works. For a deeper dive, read the [Core Concepts documentation](documentation/CORE_CONCEPTS.md).
+
+-   **Main and Renderer Processes**
+-   **Inter-Process Communication (IPC)**
+-   **Performance and GPU Management**
+
+## Contributing
+
+Contributions are welcome! Please read our [contributing guidelines](documentation/CONTRIBUTING.md) to get started.
+
 ## Technologies Used
 
 *   [Electron](https://www.electronjs.org/)
@@ -64,4 +92,8 @@ This project is licensed under the MIT License. [Read More](documentation/MIT.md
 ## Documentation
 
 * [MIT Licese](documentation/MIT.md)
-* [GPU Fix](documentation/GPU-FIX-README.md)
+* [GPU Fix](documentation/GPU-FIX-README.md)
+* [Features](documentation/FEATURES.md)
+* [Project Structure](documentation/PROJECT_STRUCTURE.md)
+* [Core Concepts](documentation/CORE_CONCEPTS.md)
+* [Contributing Guide](documentation/CONTRIBUTING.md)