anchor.diff:  
   Polls is a simple API allowing consumers to view polls and vote in them.
   
  -## Questions Collection [/questions]
  +## Contribution List [/contribution/list]
   
  -### List All Questions [GET]
  +### 取得する [GET]
   
   + Response 200 (application/json)
   
  
positive.code: + Request (application/json)
  
          {
              "question": "Favourite programming language?",
              "choices": [
                  "Swift",
                  "Python",
                  "Objective-C",
                  "Ruby"
              ]
          }
  
  + Response 201 (application/json)
  
negative.code:             }
          ]
  
  ## Contribution New [/contribution/new]
  
  ### 投稿を作成する [POST]
  
  You may create your own question using this action. It takes a JSON
  object containing a question and a collection of answers in the
  