anchor.diff:  Filter the rows by adding conditions on columns through the querystring parameters.
   For example:
   
  -+ `?first_name=eq.John&last_name=eq.Doe`
  -+ `?age=gt.10&email=like.*doe.com`
  -
  -See the full list of querystring operators in the [PostgREST docs](https://postgrest.com/en/v0.4/api.html#horizontal-filtering-rows).
  ++ `?first_name=John&last_name=Doe`
   
   + Parameters
     + sheet_name (string) - Name of the sheet
  
positive.code: 
  + Request
    + Headers
      Range-Unit: items
      Range: 0-29
      X-Order: first_name DESC
  
  + Response 200 (application/json)
    + Headers
      Range-Unit: items
      Content-Range: 0-29/*
      X-Order: first_name DESC
    + Attributes (array[Sample Row])
  
  ### Add a Row to a Sheet [POST]
  
negative.code:   + Members
      + `text`
      + `number`
      + `checkbox`
  
  ## Sample Row (object)
  + first_name: `John` (string)
  