Adding entities to services
What are entities?
Entities are a "optional" resource in EventCatalog. You can learn more reading our entities guide.
Added in 
eventcatalog@2.36.0Once you have created your entities you can add them to your services.
To add an entity to a service you need to add the entity to the entities array in the service's markdown file.
/services/PaymentService/index.mdx
---
id: PaymentService
name: PaymentService
version: 1.0.0
# This assumes you have an entity called Payment
entities:
  - id: Payment
    # Optional, if not provided the latest version will be used
    version: 1.0.0
---
Your service markdown...