Add pagination navigation to WordPress posts archive

wp-archive-pagination-navigation.php

<?php 
  $pages_required = $wp_query->max_num_pages;
  // If $paged = 0 make it 1 for display below
  if ($paged == 0) $paged = 1;
  if ( $pages_required > 1 ) : 
?>

<nav class="pagination">
  <?php echo previous_posts_link( 'Newer', $pages_required ); ?>
  <span class="pagination-indicator">Page <?php echo $paged; ?> of <?php echo $pages_required; ?></span>
  <?php echo next_posts_link( 'Older', $pages_required ); ?>
</nav>
					    	
<?php endif; // END if ($pages_required > 1) ?>