media/docs/_includes/snippets/get-locale-string.html

{%- include snippets/get-lang.html -%}
{%- assign _lang = __return -%}
{%- assign _local_lang = site.data.locale[_lang] -%}
{%- assign _local_lang_en = site.data.locale.en -%}
{%- if _local_lang == nil -%}
 {%- assign _local_lang = _local_lang_en -%}
{%- endif -%}
{%- if _local_lang[include.key] -%}
  {%- assign __return = _local_lang[include.key] -%}
{%- else -%}
  {%- assign __return = _local_lang_en[include.key] -%}
{%- endif -%}