Add README for QR Code Generator project

Added a README for the QR Code Generator project, detailing features, hosting instructions, and licensing.

README.md

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+# QR Code Generator - HTML Project
+
+This is a static HTML site that allows users to generate QR codes, scan them, and download them in different formats (SVG, PNG). It is hosted on GitHub Pages for easy access.
+
+## Features
+
+- Generate QR codes from text input
+- Change foreground and background colors of QR codes
+- Download QR codes as SVG or PNG files
+- QR code scanning functionality
+
+## How to Host on GitHub Pages
+
+1. **Create a GitHub Repository**:
+   - Sign in to your GitHub account and create a new repository (e.g., `qr-code-generator`).
+
+2. **Upload Your Files**:
+   - Clone the repository to your local machine and upload the following files:
+     - `index.html` (QR code generator HTML)
+     - `tailwind.min.css` (Tailwind CSS)
+     - `html5-qrcode.min.js` (QR code generation library)
+     - `script.js` (custom JS for handling QR code logic)
+
+3. **Push the Files**:
+   - Use Git to push your files to the GitHub repository.
+
+4. **Enable GitHub Pages**:
+   - Go to the **Settings** of your repository.
+   - Under **GitHub Pages**, select the `main` branch and save the changes.
+   
+5. **Access the Site**:
+   - Once the files are uploaded, you can access your site at:
+     ```
+     https://yourusername.github.io/qr-code-generator/
+     ```
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.