wysiwyg_template-3.0.x-dev/wysiwyg_template.links.menu.yml

wysiwyg_template.collection:
  route_name: entity.wysiwyg_template.collection
  title: 'WYSIWYG templates'
  weight: 10
  description: 'Create and modify WYSIWYG templates'
  parent: system.admin_config_content