more cleanup 4

Author: thomasWeise

index.md

@@ -32,5 +32,5 @@ The {{ site.projectNameStyled }} framework prescribes the following work flow:
 
 ## Posts
 {% for post in site.posts %}
-- [{{ post.title }}]({{ site.baseurl }}/{{ post.url }}), {{ post.date }}
+- [{{ post.title }}]({{ site.baseurl }}/{{ post.url }}), {{ post.date | date: '%Y-%m-%d' }}
 {% endfor %}