anchor.diff:      
   ### Get an item by ID [GET]
   
  ++ Request (application/json)
  +
  +    + Headers
  +    
  +            Authorization: Bearer JSON_Web_Token
  +
   + Response 201 (application/json)
   
       + Body
  
positive.code: 
  + Request (application/json)
  
          {
              "tags": [
                  "friends",
                  "cool"
              ]
          }
  
  + Response 201 (application/json)
  
  
negative.code: 
  API to collect different taggable items in sets.
  
  ## Registration [/register]
  
  ### Register [POST]
  
  Create new user simply providing an email and a password
  
  + Request (application/json)
  
          {
              "email": "username",
              "password": "password"
          }
          
  + Response 204 (application/json)
  
  + Response 409 (application/json)
  
              {
                  "message": "Email address already exists"
              }
          
  ## Authentication [/authenticate]
  
  ### Authenticate [POST]
  
  Generate a new JSON Web Token 
  
  + Request (application/json)
  
          {
              "email": "username",
              "password": "password"
          }
          
  + Response 200 (application/json)
  
              {
                  "token: "JSON_Web_Token"
              }
              
  + Response 404 (application/json)
  
              {
                  "message": "Email or Password incorrect"
              }
  
  ## List and Add items to a set [/items]
  
  ### List items [GET]
  
  + Request (application/json)
      
      + Headers
      
              Authorization: Bearer JSON_Web_Token
  
  + Response 200 (application/json)
  
  