Display post excerpt instead of full content storefront

/*Display post excerpt instead of full content*/
add_action( 'init', 'jk_customise_storefront' );

function jk_customise_storefront() {
// Remove the storefromt post content function
remove_action( 'storefront_loop_post', 'storefront_post_content', 30 );

// Add our own custom function
add_action( 'storefront_loop_post', 'jk_custom_storefront_post_content', 30 );
}

function jk_custom_storefront_post_content() {
?>
<div class="entry-content" itemprop="articleBody">
<?php
if ( has_post_thumbnail() ) {
the_post_thumbnail( 'full', array( 'itemprop' => 'image' ) );
}
?>
<?php the_excerpt(); ?>
</div><!– .entry-content –>
<?php
}

Display post excerpt instead of full content storefront