curl --request PUT \
  --url https://api.example.com/organizations/{organization_id}/portal/articles/{pk}/ \
  --header 'Content-Type: application/json' \
  --header 'X-Initdesk-Token: <api-key>' \
  --data '
{
  "collection": 123,
  "title": "<string>",
  "content_markdown": "<string>",
  "source_ticket": 123,
  "slug": "",
  "meta_description": "<string>",
  "position": 1073741823,
  "published_at": "2023-11-07T05:31:56Z"
}
'

{
  "id": 123,
  "collection": 123,
  "title": "<string>",
  "content_markdown": "<string>",
  "attachments": [
    {}
  ],
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "source_ticket": 123,
  "slug": "",
  "meta_description": "<string>",
  "position": 1073741823,
  "published_at": "2023-11-07T05:31:56Z"
}