Dynamic statuses
Add `GET /domains/:domain/nameservers` response
Document `PUT /domains/:domain/nameservers`
Fix typos
Document `GET /domains/:domain/pending` (proposed)
Document `GET /transfers` (proposed)
Document `PUT /transfers/:domain`
Better transfer codes
Document `GET /domains/:domain/contacts/:type` (proposed)
Document `PUT /domains/:domain/contacts/:type` (proposed)
Document `PATCH /domains/:domain/contacts/:type` (proposed)