anchor.diff:                  "providers": { "href": "/providers" },
                   "stages": { "href": "/stages" },
                   "categories": { "href": "/categories" },
  -                "serviceUsers": { "href": "/service-users" },
  +                "service-users": { "href": "/service-users" },
                   "issues": { "href": "/issues" }
               }
           }
  
positive.code:                 "self": { "href": "/categories/1" }
              },
              "id": 1,
              "name": "Education"
          }
  
  ### Read a Category [GET]
  + Response 200 (application/hal+json)
  
      [Category][]
      
  + Response 404 (application/vnd.error+json)
  
          {
  
negative.code: + Response 200 (application/hal+json)
  
      [ServiceUser][]
  
  + Response 404 (application/vnd.error+json)
  
          {
  