Added blog.html.twig

source/blog.html.twig

@@ -0,0 +1,14 @@
+---
+layout: default
+title: Blog
+use: [posts]
+---
+<h1>Blog</h1>
+
+{% if data.posts %}
+  <ul>
+    {% for post in data.posts %}
+      <li><a href="{{ post.url }}">{{ post.title }}</a></li>
+    {% endfor %}
+  </ul>
+{% endif %}