Add missing "name" tag to /v2/races

[TheMrMilchmann]

This is a documentation fix, not a feature request.

The current documentation of /v2/races is missing the "name" tag.

Example

https://api.guildwars2.com/v2/races?id=Human

{
  "id": "Human",
  "name": "Human",
  "skills": [
    12360,
    12361,
    12362,
    12363,
    12367,
    12373,
    10800
  ]
}