[Docs Issue] JSON structure when adding custom properties via the REST API

Description

The following JSON structure gives an error regarding the keys when attempting to create the PizzaShack API via Postman.
"additionalProperties : {"environment": "preprod", "secured": "true"}

The correct JSON structure which successfully creates the PizzaShack API with the custom properties is as follows:

  "additionalProperties": [
    {
      "name": "environment",
      "value": "prepod",
      "display": true
    },
    {
      "name": "secured",
      "value": "true",
      "display": true
    }
  ]

Steps to Reproduce

1. Run the pack.
2. Follow the documentation to add a custom property via the REST API.
3. Add the "additionalProperties : {"environment": "preprod", "secured": "true"} parameter in the PizzaShack API payload on Postman.
4. Attempt to create the API on Postman.

Version

APIM Post Beta Pack (Testing Hackathon)

Environment Details (with versions)

No response

Open the linked documentation page and compare its REST API custom-property example with the working PizzaShack API payload described here. Update the example to use the shown additionalProperties array, then verify that the documented payload matches the successful Postman request.