Image demo pattern

It is possible to use an image (static or animated) as a demo in a CodePattern.
Use an 
Img shortcode wrapped in a 
<figure> tag in the demo.md
file. In this case, you should not add body.html to the demo assets.
If you still want to display an HTML snippet, give it a name other than "body".
// demo.md
---
layout: demo
patternId: image-demo-example
---
<figure>
  {% Img
    src="image/admin/3lZosaL1YXafLn4ZRINl.gif",
    alt="WalkMe state toggle test.",
    width="441",
    height="400"
    %}
</figure>