podcast update

source/layouts/blog.html.haml

@@ -7,7 +7,10 @@
     .col-sm-9#main{:role => "main"}
       = yield
       .post_footer
-        %p published around #{current_article.date.strftime('%m/%d/%Y')}
+        %p 
+          published around #{current_article.date.strftime('%m/%d/%Y')}
+          - if current_article.data.edited
+            · last edited around #{current_article.data.edited.strftime('%m/%d/%Y')}
     .col-sm-3
       = partial 'shared/blog_list'