Tag Instance
GET /api/v1/tags/promises/
{ "slug": "promises", "url": "https://library.into-action.us/api/v1/tags/promises/", "name": "promises" }
GET /api/v1/tags/promises/
{ "slug": "promises", "url": "https://library.into-action.us/api/v1/tags/promises/", "name": "promises" }