webhooks-8.x-1.x-dev/modules/webhook/webhook.links.menu.yml

entity.webhook_type.collection:
  title: 'Webhook types'
  description: 'Manage and CRUD actions on Webhook type.'
  parent: system.admin_structure
  route_name: entity.webhook_type.collection

entity.webhook.collection:
  title: 'Webhooks'
  description: 'List of webhooks.'
  route_name: entity.webhook.collection
  parent: system.admin_content