I am using the code below to change the “Add to Cart” to “Read More” and link to the product page.
My question is how to do that ONLY for specific product categories.

add_filter( 'woocommerce_loop_add_to_cart_link', 'replace_loop_add_to_cart_button', 10, 2 );
if( $product->is_type( 'variable' ) ) return $button;
$button_text = __( "Read More", "woocommerce" );
return '<a class="button" href="' . $product->get_permalink() . '">' . $button_text .          '</a>';
}