Missing Follow button on post page

Will you please show me where I can add the code into the post loop?
This is my index.php:
<div id=”pageheader” class=”titleclass”>
<div class=”container”>
<?php get_template_part(‘templates/page’, ‘header’); ?>
</div><!–container–>
</div><!–titleclass–>

<div id=”content” class=”container”>
<div class=”row”>
<div class=”main <?php echo esc_attr(kadence_main_class()); ?> postlist” role=”main”>

<?php if (!have_posts()) : ?>
<div class=”alert”>
<?php _e(‘Sorry, no results were found.’, ‘virtue’); ?>
</div>
<?php get_search_form(); ?>
<?php endif; ?>

<?php while (have_posts()) : the_post(); ?>
<?php get_template_part(‘templates/content’, get_post_format()); ?>
<?php endwhile; ?>

<?php //Page Navigation
if ($wp_query->max_num_pages > 1) :
virtue_wp_pagenav();
endif; ?>

</div><!– /.main –>

The plugin doesn’t add a follow button on WP pages by default.

You can check out this wiki page for an idea of how to do it:
https://github.com/r-a-y/buddypress-followers/wiki/Add-a-follow-button-on-a-regular-WP-page

Hi r-a-y, thank you for your comment.
Is the index file the right place to enhance the post loop?
In the index file above, where should I put this code in?
Thanks for help, I’m very new in wp ??