Show related articles based on article tags - Shopify

related-articles.liquid

<div class='relatedArticles'>
  {% for tag in article.tags %}

  {% assign counter = 0 %}
  {% assign skip_articles = article.handle | split: '.....' %}
  {% for related_article in blog.articles %}
    {% if related_article.tags contains tag and counter < 6 %}
      {% unless skip_articles contains related_article.handle %}
        {% assign counter = counter | plus: 1 %}
        {% assign temp = related_article.handle | split: '.....' %}
        {% assign skip_articles = skip_articles | concat: temp %}
        <div class="well">
          <h3><a href="{{ related_article.url }}">{{ related_article.title }}</a></h3>
          {% if related_article.excerpt.size > 0 %}
            <p>{{ related_article.excerpt }}</p>
          {% else %}
            <p>{{ related_article.content | truncatewords: 40 }}</p>
          {% endif %}
        </div>
      {% endunless %}
    {% endif %}
  {% endfor %}

  {% endfor %}
</div>