sports_league-8.x-1.x-dev/modules/sl_admin_ui/sl_admin_ui.links.menu.yml

sl_admin_ui.dashboard:
  title: 'Sports League'
  description: 'Sports League Dashboard'
  parent: system.admin
  route_name: sl_admin_ui.dashboard
  weight: 3
  #If menu_name is omitted, the "Tools" menu will be used.
  menu_name: admin

sl_admin_ui.content:
  title: 'Sports League Content'
  description: 'List of sports league content.'
  route_name: sl_admin_ui.content
  parent: system.admin_content

sl_admin_ui.structure:
  title: 'Sports League Structure'
  description: 'Manage Sports League structure.'
  parent: system.admin_structure
  route_name: sl_admin_ui.structure