anchor.diff:  
   + Response 200 (application/json)
   
  -    + Body
  -
  -            { "id": 3, "name": "JavaScript" }
  +        { "id": 3, "name": "JavaScript" }
   
   ### PUT
   Update a skill
  
positive.code:         ]
  
  ### POST
  Create a skill 
  
      Sample Requests:
      [POST] http://personal.apiary-mock.com/skills
  
negative.code: 
  + Request (application/json)
  
          { "name": "HTML5" }
  
  + Response 200 (application/json)
  
          { "id": 3, "name": "HTML5" }
  
  ### DELETE
  Remove a skill
  