+ A `Link` header with the value
+ `</about.jsonld>;rel=meta;type="application/ld+json"` (or
+ equivalent) **must** be provided.
+
+ + **`GET /about`**:
+ Serve the file at `/.about.html`.
+ A `Link` header with the value
+ `</about.jsonld>;rel=meta;type="application/ld+json"` (or
+ equivalent) **must** be provided.