add disqus comments

_layouts/post.html

@@ -51,6 +51,26 @@ <h3>{{ page.title }}</h3>
 	<font size="-1"><a href="{{ page.next.url }}" title="{{ page.next.title }}">Next&nbsp;post&nbsp;&raquo;</a></font>
 	{% endif %}
 	</div>
+
+	{% if page.identifier %}
+	<div id="disqus_thread"></div>
+	<script>
+	var disqus_config = function () {
+		this.page.url = '{{ site.url }}{{ page.url }}';  // Replace PAGE_URL with your page's canonical URL variable
+		this.page.identifier = '{{ page.identifier }}'; // Replace PAGE_IDENTIFIER with your page's unique identifier variable
+ 	};
+
+	(function() {  // DON'T EDIT BELOW THIS LINE
+		var d = document, s = d.createElement('script');
+		s.src = '//nvml.disqus.com/embed.js';
+		s.setAttribute('data-timestamp', +new Date());
+		(d.head || d.body).appendChild(s);
+	})();
+	</script>
+	<noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript" rel="nofollow">comments powered by Disqus.</a></noscript>
+	{% endif %}
+
+
 	<div id="footer">
 		<hr>
 		{% include pagefooter.html %}

_posts/2016-02-25-fragmentation.md

@@ -2,6 +2,7 @@
 title: Persistent allocator design - fragmentation
 author: pbalcer
 layout: post
+identifier: pmem_alloc_fragmentation
 ---
 
 Implementing a memory allocator is a balance between numerous properties with