Add update date to posts

1 files changed, 7 insertions, 0 deletions

diff --git a/_layouts/post.html b/_layouts/post.html
index 1cd1a12..4777b00 100644
--- a/_layouts/post.html
+++ b/_layouts/post.html
@@ -11,6 +11,13 @@ layout: default
         {%- assign date_format = "%A, %e. %B %Y, %k:%M" -%}
         {{ page.date | date: date_format }}
       </time>
+      {%- if page.last_modified_at.size -%}
+      •
+      <time class="dt-updated" datetime="{{ post.last_modified_at | date_to_xmlschema }}" itemprop="dateUpdated">
+        Updated: {{ page.last_modified_at | date: date_format }}
+      </time>
+      {%- endif -%}
+
       {%- if page.author -%}
         • <span itemprop="author" itemscope itemtype="http://schema.org/Person"><span class="p-author h-card" itemprop="name">{{ page.author }}</span></span>
       {%- endif -%}