Get and display the first image from a Shopify blog article.

gistfile1.txt

{% if article.content contains '<img' %}
  {% assign src = article.content | split: 'src="' %}
  {% assign src = src[1] | split: '"' | first | replace: '//cdn', 'http://cdn' | replace: 'http:http://', 'http://' %}

    <img src="{{ src }}" />

{% endif %}