qr_generator-1.0.1/qr_generator.links.menu.yml

entity.qr_code.settings:
  title: 'QR Code'
  description: 'Configure a QR Code entity type.'
  route_name:  entity.qr_code.settings
  parent: system.admin_structure

entity.qr_code.collection:
  title: 'QR Codes'
  description: 'List of QR Codes.'
  route_name: entity.qr_code.collection
  parent: system.admin_content