Address concerns from #1018 commit c59668e

docs/general/rendering.md

@@ -103,7 +103,46 @@ PR please :)
 
 #### links
 
-PR please :)
+##### How to add top-level links
+
+JsonApi supports a [links object](http://jsonapi.org/format/#document-links) to be specified at top-level, that you can specify in the `render`:
+
+```ruby
+  links_object = {
+    href: "http://example.com/api/posts",
+    meta: {
+      count: 10
+    }
+  }
+  render json: @posts, links: links_object
+```
+
+That's the result:
+
+```json
+{
+  "data": [
+    {
+      "type": "posts",
+      "id": "1",
+      "attributes": {
+        "title": "JSON API is awesome!",
+        "body": "You should be using JSON API",
+        "created": "2015-05-22T14:56:29.000Z",
+        "updated": "2015-05-22T14:56:28.000Z"
+      }
+    }
+  ],
+  "links": {
+    "href": "http://example.com/api/posts",
+    "meta": {
+      "count": 10
+    }
+  }
+}
+```
+
+This feature is specific to JsonApi, so you have to use the use the [JsonApi Adapter](adapters.md#jsonapi)
 
 ### serializer_opts