List featured docs for a Pack

Example response

{
  "items": [
    {
      "doc": {
        "id": "AbCDeFGH",
        "href": "https://docs.superhuman.com/apis/v1/docs/AbCDeFGH",
        "browserLink": "https://docs.superhuman.com/d/_dAbCDeFGH"
      }
    }
  ]
}