Add fourthwall_random shortcode examples to admin settings page

- Add three usage examples for the new [fourthwall_random] shortcode
- Include examples for basic random products, specific URLs, and different stores
- Place examples alongside existing shortcode documentation in admin panel
- Improve user experience by providing clear usage guidance

libs/settings.php

@@ -91,6 +91,9 @@ class fourthwall_settings {
 		echo '   <p><strong>' . __( 'Display entire store:', 'fourthwall_text_domain' ) . '</strong> <code>[fourthwall]</code></p>' . "\n";
 		echo '   <p><strong>' . __( 'Display single product:', 'fourthwall_text_domain' ) . '</strong> <code>[fourthwall_single url="https://your-store.fourthwall.com/products/product-name"]</code></p>' . "\n";
 		echo '   <p><strong>' . __( 'With description:', 'fourthwall_text_domain' ) . '</strong> <code>[fourthwall_single url="https://your-store.fourthwall.com/products/product-name" show_description="true"]</code></p>' . "\n";
+		echo '   <p><strong>' . __( 'Display random products:', 'fourthwall_text_domain' ) . '</strong> <code>[fourthwall_random count="5"]</code></p>' . "\n";
+		echo '   <p><strong>' . __( 'Random from specific URLs:', 'fourthwall_text_domain' ) . '</strong> <code>[fourthwall_random count="3" urls="https://store.com/product1,https://store.com/product2,https://store.com/product3"]</code></p>' . "\n";
+		echo '   <p><strong>' . __( 'Random from different store:', 'fourthwall_text_domain' ) . '</strong> <code>[fourthwall_random count="2" store_url="https://different-store.fourthwall.com"]</code></p>' . "\n";
 		echo '   <p><em>' . __( 'Note: Disable SSL verification only for local development. Keep enabled for production sites.', 'fourthwall_text_domain' ) . '</em></p>' . "\n";
 		echo ' </div>' . "\n";
 		echo '</div>' . "\n";