Update README with project details and features

Added detailed project description, features, prerequisites, and acknowledgments.

README.md

@@ -1 +1,31 @@
-# PortFolio_Matheo
+# [matheoguilbert.fr_v1](matheoguilbert.fr)
+
+This repository contains the source code for the first version of my personal portfolio website. 
+
+[Take a look](matheoguilbert.fr) 👀
+
+It was completed in 2023 with a view to strengthening my ParcourSup application for my transition from secondary school to higher education.
+
+<div align="center">
+  <img src="https://github.com/user-attachments/assets/6dc7c973-2a8d-4d82-8e8b-151fd9963f3d" width="700" alt="Welcome page" />
+</div>
+
+## Key Features & Benefits
+
+*   **About Me Page:** Provides information about Matheo Guilbert.
+*   **Projects Page:** Showcases Matheo's projects, including an Astro Pi project.
+*   **Contact Page:** Allows visitors to contact Matheo.
+*   **Responsive Design:**  Built using HTML and CSS to provide a good viewing experience on various devices.
+
+## Prerequisites & Dependencies
+
+Here are the dependencies required for the project.
+
+*   **Node.js:** While not explicitly used for backend functionality according to the file list, having Node.js installed ensures you can run necessary development tools and local servers if required.
+*   **Web Browser:** A modern web browser such as Chrome, Firefox, or Safari to view the website.
+*   **Text Editor/IDE:** A text editor or IDE like VS Code, Sublime Text, or Atom for code editing.
+
+## Acknowledgments
+
+*   This project utilizes various fonts from Google Fonts.  Specific fonts are listed in the CSS files.
+*   The Swiper library is used for potential slider functionality (though its implementation is not explicitly clear from the provided snippets.)