have random posts in the flame button

posts.json

@@ -0,0 +1,15 @@
+---
+layout: nil
+---
+[
+    {% assign albums = site.categories.releases %}
+    {% assign tracks = site.tracks %}
+
+    {% assign random = albums | concat: tracks %}
+{% for post in random %}
+{
+    "title": "{{ post.title }}",
+    "href": "{{ post.url }}"
+}{% unless forloop.last %},{% endunless %}
+{% endfor %}
+]