@GiovannaChine: That will be like repeat as you can see in the page http://catchthemes.com/demo/simplecatch/uncategorized/beautiful-view-from-namobuddha/, you have categories below the post. But if you want to add it just below the header like you have mentioned. Then you need to create child theme. Then create functions.php in your child theme and add the following code.
<?php
/**
* Display the page/post loop part
* @since Simple Catch Pro 1.3.2
*/
function simplecatch_loop() {
if ( is_page() ): ?>
<section <?php post_class(); ?> >
<header class="entry-header">
<h1 class="entry-title"><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php echo esc_attr( get_the_title() ); ?>"><?php the_title(); ?></a></h1>
</header>
<div class="entry-content clearfix">
<?php the_content();
// copy this <!--nextpage--> and paste at the post content where you want to break the page
wp_link_pages(array(
'before' => '<div class="pagination">Pages: ',
'after' => '</div>',
'link_before' => '<span>',
'link_after' => '</span>',
'pagelink' => '%',
'echo' => 1
) ); ?>
</div>
</section><!-- .post -->
<?php elseif ( is_single() ): ?>
<section <?php post_class(); ?>>
<header class="entry-header">
<h1 class="entry-title"><a href="<?php the_permalink(); ?>" rel="bookmark" title="<?php echo esc_attr( get_the_title() ); ?>"><?php the_title(); ?></a></h1>
<div class="entry-meta">
<ul class="clearfix">
<li class="no-padding-left author vcard"><a class="url fn n" href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) ); ?>" title="<?php echo esc_attr(get_the_author_meta( 'display_name' ) ); ?>" rel="author"><?php _e( 'By', 'simplecatch' ); ?> <?php the_author_meta( 'display_name' );?></a></li>
<li class="entry-date updated"><?php $simplecatch_date_format = get_option( 'date_format' ); the_time( $simplecatch_date_format ); ?></li>
<li class="tags"><?php _e( 'Categories: ', 'simplecatch' ); ?> <?php the_category(', '); ?> </li>
<li><?php comments_popup_link( __( 'No Comments', 'simplecatch' ), __( '1 Comment', 'simplecatch' ), __( '% Comments', 'simplecatch' ) ); ?></li>
</ul>
</div>
</header>
<div class="entry-content clearfix">
<?php the_content();
// copy this <!--nextpage--> and paste at the post content where you want to break the page
wp_link_pages(array(
'before' => '<div class="pagination">Pages: ',
'after' => '</div>',
'link_before' => '<span>',
'link_after' => '</span>',
'pagelink' => '%',
'echo' => 1
) );
?>
</div>
<footer class="entry-meta">
<?php
$tag = get_the_tags();
if (! $tag ) { ?>
<div class='tags'><?php _e( 'Categories: ', 'simplecatch' ); ?> <?php the_category(', '); ?> </div>
<?php } else {
the_tags( '<div class="tags"> ' . __('Tags', 'simplecatch') . ': ', ', ', '</div>');
} ?>
</footer>
</section> <!-- .post -->
<?php endif;
} // simplecatch_loop
.
