Text between {% comment %} and {% endcomment %} tags won't be rendered.
Liquid Input
Line one!
{% comment %} Line two! {% endcomment %}
Line three!
HTML Output
Line one!
Line two!
Text between {% comment %} and {% endcomment %} tags won't be rendered.
Line one!
{% comment %} Line two! {% endcomment %}
Line three!
Line one!
Line two!