Add comprehensive demo data with articles and VirtueMart sample data

data/demo/articles/ecommerce/README.md

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+# E-commerce Website Articles
+
+This directory contains sample articles specifically designed for e-commerce websites using VirtueMart.
+
+## Contents
+
+The `articles.j2xml` file includes:
+
+1. **Shop Home** - E-commerce landing page
+2. **Shipping Information** - Shipping policies and rates
+3. **Returns & Refunds** - Return policy
+4. **Payment Methods** - Accepted payment options
+5. **Size Guide** - Product sizing information
+6. **Product Care Instructions** - Care and maintenance tips
+7. **Gift Cards** - Gift card information
+8. **Wholesale Inquiry** - B2B sales information
+9. **Shopping Guide** - How to shop on the site
+
+## Installation
+
+1. Install the **j2xml** component in your Joomla installation
+2. Navigate to: **Components > j2xml > Import**
+3. Select the `articles.j2xml` file
+4. Click **Import**
+5. Review imported articles in **Content > Articles**
+
+## What Gets Imported
+
+- 9 e-commerce focused articles
+- Categories: Shopping, Policies, Help
+- SEO-optimized content
+- Call-to-action buttons
+- Trust-building content
+
+## Post-Import Steps
+
+1. **Customize Policies**: Update shipping rates, return windows, etc.
+2. **Add Payment Info**: Specify your accepted payment methods
+3. **Update Links**: Link to your VirtueMart shop categories
+4. **Set Menu Items**: Create menu links to key pages
+5. **Add Trust Badges**: Include security and payment badges
+
+## Integration with VirtueMart
+
+These articles complement your VirtueMart shop:
+- Link shipping info from checkout
+- Display return policy in footer
+- Reference from product pages
+- Include in customer emails
+
+## Best Practices
+
+- Keep policies clear and concise
+- Update shipping info seasonally
+- Maintain current contact details
+- Review legal compliance
+- Add trust badges and certifications
+
+## Article List
+
+| Title | Category | Type | Purpose |
+|-------|----------|------|---------|
+| Shop Our Collection | Shopping | Featured | Shop landing page |
+| Shipping Information | Policies | Standard | Shipping details |
+| Returns & Refunds | Policies | Standard | Return policy |
+| Payment Methods | Policies | Standard | Payment options |
+| Size Guide | Help | Standard | Product sizing |
+| Product Care | Help | Standard | Care instructions |
+| Gift Cards | Shopping | Standard | Gift card info |
+| Wholesale Inquiry | Shopping | Standard | B2B sales |
+| Shopping Guide | Help | Standard | How to shop |
+
+## Dependencies
+
+- Joomla 4.x or 5.x
+- j2xml component
+- VirtueMart component (recommended)
+- Moko-Cassiopeia template
+
+## Version
+
+Version: 1.0.0
+Last Updated: 2026-01-29
+Compatible with: Joomla 4.x, 5.x, VirtueMart 4.x