<div class="author-section">
<div class="row">
<div class="col-md-3">
<?php
echo get_avatar(get_the_author_meta( "ID" ));
?>
</div>
<div class="col-md-9">
<h4><?php echo get_the_author_meta( "display_name" ); ?></h4>
<p> <?php echo get_the_author_meta( "description" ); ?></p>
</div>
</div>
</div>