about liquid tags
what i learned
shopify has a github pages site documenting liquid tags which is very useful and easy to use.
how i learned
{% raw %}
i am moving soyserg.io from a hugo site to jekyll and i couldn't figure out how to have nested {{}} as in {{ category/{{category | downcase }} | relative_url }} which just doesn't work. so i moved to {{ 'category/' | append: category | downcase | relative_url }}
the answer was found here: shopify.github.io/liquid