adding disqus for comments

app/views/blog/_disqus.html.erb

@@ -0,0 +1,20 @@
+<div id="disqus_thread"></div>
+<script>
+
+/**
+*  RECOMMENDED CONFIGURATION VARIABLES: EDIT AND UNCOMMENT THE SECTION BELOW TO INSERT DYNAMIC VALUES FROM YOUR PLATFORM OR CMS.
+*  LEARN WHY DEFINING THESE VARIABLES IS IMPORTANT: https://disqus.com/admin/universalcode/#configuration-variables*/
+/*
+var disqus_config = function () {
+this.page.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 = 'https://web-dev-camp.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">comments powered by Disqus.</a></noscript>

app/views/blog/page.haml

@@ -15,8 +15,11 @@
   .center_col
     = render( @page.template_name )
 
+.blog
+  .center_col
     = render "subscribe"
-
+  .center_col
+    = render "disqus"
 
 :javascript
   $(function () {