This theme supports link posts, made famous by John Gruber. To use, just add link: http://url-you-want-linked to the post’s YAML front matter and you’re done.
A Post with a Video
Video embeds are responsive and scale with the width of the main content block with the help of FitVids.
<iframe width="560" height="315" src="//www.youtube.com/embed/SU3kYxJmWuQ" frameborder="0"></iframe>