change

it4i_theme/header.html

@@ -22,6 +22,18 @@
         {{ page_title | default(site_name, true) }}
       </div>
     </div>
+    {% if config.extra.get("author", {}).twitter %}
+      {% set author = config.extra.author.twitter %}
+      <div class="button button-twitter" role="button" aria-label="Twitter">
+        <a href="https://twitter.com/{{ author }}" title="@{{ author }} on Twitter" target="_blank" class="toggle-button icon icon-twitter"></a>
+      </div>
+    {% endif %}
+    {% if config.extra.get("author", {}).github %}
+      {% set author = config.extra.author.github %}
+      <div class="button button-github" role="button" aria-label="GitHub">
+        <a href="https://github.com/{{ author }}" title="@{{ author }} on GitHub" target="_blank" class="toggle-button icon icon-github"></a>
+      </div>
+    {% endif %}
     <div class="button button-search" role="button" aria-label="Search">
       <label class="toggle-button icon icon-search" title="Search" for="toggle-search"></label>
     </div>