stable-8.x-1.0-alpha1/templates/misc/feed-icon.html.twig

{#
/**
 * @file
 * Theme override for a feed icon.
 *
 * Available variables:
 * - url: An internal system path or a fully qualified external URL of the feed.
 * - title: Title of the feed for describing the feed on the subscribe link.
 * - attributes: Remaining HTML attributes for the feed link.
 *   - title: A descriptive title of the feed link.
 *   - class: HTML classes to be applied to the feed link.
 */
#}
<a href="{{ url }}"{{ attributes.addClass('feed-icon') }}>
  {{ 'Subscribe to @title'|t({'@title': title}) }}
</a>