add disqus and show adsense only on posts

_includes/disqus.html

@@ -0,0 +1,13 @@
+<div id="disqus_thread"></div>
+<script type="text/javascript">
+    /* * * CONFIGURATION VARIABLES * * */
+    var disqus_shortname = 'phil-opp';
+
+    /* * * DON'T EDIT BELOW THIS LINE * * */
+    (function() {
+        var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
+        dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
+        (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
+    })();
+</script>
+<noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript" rel="nofollow">comments powered by Disqus.</a></noscript>

_layouts/default.html

@@ -21,8 +21,6 @@
         {{ content }}
       </main>
 
-      {% include google_adsense.html %}
-
       <footer class="footer">
         <small>
           &copy; <time datetime="{{ site.time | date_to_xmlschema }}">{{ site.time | date: '%Y' }}</time>. All rights reserved. <a href="{{ site.contact }}">Contact</a>

_layouts/post.html

@@ -6,4 +6,8 @@ layout: default
   <h1 class="post-title">{{ page.title }}</h1>
   <time datetime="{{ page.date | date_to_xmlschema }}" class="post-date">{{ page.date | date_to_string }}</time>
   {{ content }}
+
+  {% include google_adsense.html %}
+
+  {% include disqus.html %}
 </article>