anchor.diff:  }
   --------------------------------------------------------------
   
  -`Transition[S]` is a type alias to `PartialFunction[S, S]` where `S` is the type of your state.
  +`Transition` is a type alias to `PartialFunction[S, S]` where `S` is the type of your state.
   
   Events
   ~~~~~~
  
positive.code: 
  [source,scala]
  -----------------------------------
  access.property.update[String](loginField, 'value, "John Doe") map {
    transition { ... }
  }
  -----------------------------------
  
negative.code: 
  Use `onProgress` callback to handle progress of the form downloading. Function `start` return a `FormData`. Look API documentation for more details.
  
  https://github.com/fomkin/korolev/blob/v0.4.0/examples/form-data/src/main/scala/FormDataExample.scala[See full example]
  
  Delays
  ~~~~~~
  