Add GitHub repository setup instructions to README

README.md

@@ -118,4 +118,64 @@ If you encounter issues:
 
 ![Quadratic Plotter Screenshot](screenshot.png)
 
-*Note: Add your own screenshot after running the application*
+*Note: Add your own screenshot after running the application*
+
+## GitHub Repository Setup
+
+This project is already initialized as a Git repository. To push it to a private GitHub repository:
+
+### Option 1: Using GitHub CLI (Recommended)
+
+1. Install GitHub CLI if not already installed:
+   ```bash
+   # On Ubuntu/Debian
+   sudo apt install gh
+   
+   # On macOS
+   brew install gh
+   ```
+
+2. Authenticate with GitHub:
+   ```bash
+   gh auth login
+   ```
+
+3. Create a new private repository:
+   ```bash
+   gh repo create quadratic-plotter --private --source=. --remote=origin --push
+   ```
+
+### Option 2: Manual Setup
+
+1. Create a new private repository on [GitHub.com](https://github.com/new):
+   - Repository name: `quadratic-plotter` (or your preferred name)
+   - Select "Private"
+   - Do NOT initialize with README, .gitignore, or license
+
+2. Add the remote and push:
+   ```bash
+   git remote add origin https://github.com/YOUR_USERNAME/quadratic-plotter.git
+   git branch -M main
+   git push -u origin main
+   ```
+
+### Option 3: Using SSH
+
+If you prefer SSH authentication:
+
+1. Add your SSH key to GitHub
+2. Use SSH URL:
+   ```bash
+   git remote add origin git@github.com:YOUR_USERNAME/quadratic-plotter.git
+   git branch -M main
+   git push -u origin main
+   ```
+
+### Verification
+
+After pushing, verify your repository:
+```bash
+git log --oneline
+git remote -v
+git status
+```