Add index with default layout

index.tl

@@ -0,0 +1,11 @@
+---
+# Feel free to add content and custom Front Matter to this file.
+# To modify the layout, see https://jekyllrb.com/docs/themes/#overriding-theme-defaults
+
+layout: default
+---
+
+{% for post in site.posts %}
+* {{post.date | date: "%Y-%m-%d"}}: "{{post.title}}":{{post.url}}
+  {% if post.update_date %}(updated {{post.update_date | date: "%Y-%m-%d"}}){% endif %}
+{% endfor %}