anchor.diff:  + `meta` ... A catch-all attribute to add custom features
   
   ### Affordances
  -+ `self` ... A single Folder
  ++ `show` (`self`) ... A single Folder
  ++ `update` (`edit`) ... Updates the Folder
  ++ `delete` (`edit`) ... Deletes the Folder 
   
   + Parameters
       + id (required, int) ... Unique folder ID in the form of an integer
  
positive.code: + `folders_count` ... Total count of all folders
  
  ### Affordances
  + `self` ... List of all Folders
  
  + Model (application/hal+json)
  
          {
              "_links": {
                 "self": { "href": "/folders" },        
              },
              "folders_count": 2,
              "_embedded": {
  
negative.code: This entry point resource does not have any attributes, instead it offers affordances available at the root of the API.
  
  ### Affordances
  + `show` (`self`) ... API entry point
  + `folders` ... List of todo folders 
  
  ## Retrieve the API Root [GET]
  