Detail for specified facet term

`facet_id`: "topics", "facility", "format", "genre", or "rights".
`term_id`: A term ID from one of the following lists:

- http://partner.densho.org/vocab/api/0.2/topics.json
- http://partner.densho.org/vocab/api/0.2/facility.json
- http://partner.densho.org/vocab/api/0.2/format.json
- http://partner.densho.org/vocab/api/0.2/genre.json
- http://partner.densho.org/vocab/api/0.2/rights.json

GET /api/0.2/facet/genre/cartoon/
HTTP 200 OK
Allow: GET, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": "genre-cartoon",
    "model": "ddrfacetterm",
    "facet": "genre",
    "term_id": "cartoon",
    "links": {
        "json": "https://ddr.densho.org/api/0.2/facet/genre/cartoon/",
        "html": "https://ddr.densho.org/browse/genre/cartoon/",
        "objects": "https://ddr.densho.org/api/0.2/facet/genre/cartoon/objects/"
    },
    "title": "Cartoons (Commentary)"
}