Update readme

README.md

@@ -41,8 +41,8 @@ type ExampleState =
 -- state update callback, and produces a document.
 example :: R.ReactComponent ExampleProps
 example = R.react
- { initialState: \_ -> { counter: 0 }
- , setup: \_ _ _ -> pure unit
+ { initialState: { counter: 0 }
+ , receiveProps: \_ _ _ -> pure unit
  , render: \{ label } { counter } setState ->
  R.button { onClick: mkEffFn1 \_ -> do
  setState { counter: counter + 1 }