Storefront is a beautiful Woocommerce template for your e-commerce website built in WordPress. Personally, I find it much faster and feature-rich than thousands of commercial WordPress themes. It is a free, intuitive & flexible theme that offers deep integration into the WordPress.

Customization of the storefront theme is super easy using “actions” & “filters”.
Here is a small code snippet to remove the footer credit that says “Built with Storefront & WooCommerce.“. For any non-profit website, I would highly recommend keeping the credit link but if you really need to remove it you may add the following code in your child theme’s functions.php file.
add_filter( 'storefront_credit_link', 'wpbred_remove_storefront_credit_link');
function wpbred_remove_storefront_credit_link($content)
{
return "";
}