Update default.html

_layouts/default.html

@@ -40,7 +40,19 @@
         <a href="{{ site.github.tar_url }}" class="btn">Download .tar.gz</a>
       {% endif %}
     </header>
-
+    <div id="adv">
+    <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
+<!-- Horizontal media -->
+<ins class="adsbygoogle"
+     style="display:block"
+     data-ad-client="ca-pub-6530242109614004"
+     data-ad-slot="9326915868"
+     data-ad-format="auto"
+     data-full-width-responsive="true"></ins>
+<script>
+     (adsbygoogle = window.adsbygoogle || []).push({});
+</script>
+    </div>
     <main id="content" class="main-content" role="main">
       {{ content }}