add files

template-parts/single/post-author.php

@@ -0,0 +1,17 @@
+<!--[single/post-author]-->
+
+<?php foreach (get_coauthors() as $author ): ?>
+
+    <a class="publication__author" href="<?= get_author_posts_url( $author->ID, $author->user_nicename ); ?>" itemprop="author" itemscope itemtype="https://schema.org/Person">
+
+        <?= $author->display_name; ?>
+
+        <meta itemprop="name" content="<?= htmlspecialchars($author->display_name); ?>" />
+
+        <link itemprop="url"  href="<?= get_author_posts_url( $author->ID, $author->user_nicename ); ?>" />
+
+    </a>
+
+<?php endforeach; ?>
+
+<!--[/single/post-author]-->