Structured Data Solution For Hueman Wordpress Theme

Changes to made in Heuman Theme -

content.php
content-featured.php

<h2 class="post-title">
change to:
<h2 class="post-title entry-title">

<p class="post-date"><?php the_time('j M, Y'); ?></p>
change to:
<p class="post-date date updated"><?php the_time('j M, Y'); ?></p>
------------------------------------------------------------------
single.php

<h1 class="post-title"><?php the_title(); ?></h1>
change to:
<h1 class="post-title entry-title"><?php the_title(); ?></h1>

<p class="post-byline"><?php _e('przez','hueman'); ?> <?php the_author_posts_link(); ?> · <?php the_time(get_option('date_format')); ?></p>
change to:
<p class="post-byline"><?php _e('przez','hueman'); ?> <span class="vcard author"> <span class="fn"><?php the_author_posts_link(); ?> </span></span> · <span class="post-date date updated"><?php the_time(get_option('date_format')); ?></span></p>
------------------------------------------------------------------
related-posts.php

<p class="post-date"><?php the_time('j M, Y'); ?></p>
change to:
<p class="post-date date updated"><?php the_time('j M, Y'); ?></p>

<h4 class="post-title">
change to:
<h4 class="post-title entry-title">