Entry point for the entire API. Lists each API endpoint as
documented below.
GET /api/
HTTP 200 OK Vary: Accept Content-Type: text/html; charset=utf-8 Allow: OPTIONS, GET
{ "folders": "https://kouio.com/api/folders/", "items": "https://kouio.com/api/items/", "recommendations": "https://kouio.com/api/recommendations/", "subscriptions": "https://kouio.com/api/subscriptions/" }