add disqus for iframe loading for AMP on blog

disqus_comments.html

@@ -0,0 +1,43 @@
+<div id="disqus_thread"></div>
+<script data-cfasync="false">
+window.addEventListener('message', receiveMessage, false);
+function receiveMessage(event)
+{
+    if (event.data) {
+        var msg;
+        try {
+            msg = JSON.parse(event.data);
+        } catch (err) {
+            // Do nothing
+        }
+        if (!msg)
+            return false;
+
+        if (msg.name === 'resize') {
+            window.parent.postMessage({
+              sentinel: 'amp',
+              type: 'embed-size',
+              height: msg.data.height
+            }, '*');
+        }
+    }
+}
+</script>
+<script data-cfasync="false">
+    /**
+     *  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 = window.location;  // Replace PAGE_URL with your page's canonical URL variable
+        this.page.identifier = window.location.hash; // 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 = '//EXAMPLE.disqus.com/embed.js';
+
+        s.setAttribute('data-timestamp', +new Date());
+        (d.head || d.body).appendChild(s);
+    })();
+</script>