Based on Joel Verhagen's code https://gist.github.com/joelverhagen/1805814
Easily embed a YouTube or Vimeo video. Drop this file in your _plugins
directory.
{% youtube oHg5SJYRHA0 %}
{% vimeo oHg5SJYRHA0 %}
Default size is 560 x 420. Specify custom size like so:
{% youtube oHg5SJYRHA0 450 220 %}