Please help me, i can change this code for genre not tags
Ex
title: example title
genre: action comedy horror
{% assign alldocs = site.series | %}
{% assign grouptag = alldocs | map: ‘tags’ | join: ‘,’ | split: ‘,’ | group_by: tag %}
{%- for tag in grouptag -%}
{{- tag.name -}} - {{tag.size}}
{%- for document in alldocs -%}
{% if document.tags contains tag.name %}
{{- document.title -}}
{% endif %}
{%- endfor -%}
{%- endfor -%}