initial principles shortcode work

content/patterns/landmarks/example1.md

@@ -5,4 +5,6 @@ wcag = ["1-1-1"]
 
 <p>Nulla vel magna sit amet dui lobortis commodo vitae vel nulla sit amet ante hendrerit tempus. Maecenas sit amet tellus nec mi gravida posuere non pretium magna. <strong>Donec a congue leo. </strong></p>
 
+{{% principles include="doo-stuff,things-and-that,other-stuff" %}}
+
 <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas sit <em>amet tellus</em> nec mi gravida posuere non <a href='#'>pretium magna</a>. Nulla vel magna sit amet dui lobortis commodo vitae vel nulla sit amet ante hendrerit tempus. Donec tempus tempus tellus, ac <abbr title='Hypertext Markup Language'>HTML</abbr> lacinia turpis mattis ac. Suspendisse potenti. Nunc iaculis risus vel orci ornare dignissim sed vitae nulla. Donec a congue leo? Fusce ac sodales <abbr title='Cascading Style Sheets'>CSS</abbr> magna. </p>