doc(input): add note about handleChange implementation
doc(input): add note about handleChange implementation

react-toolbox/react-toolbox,react-toolbox/react-toolbox,soyjavi/react-toolbox,showings/react-toolbox,jasonleibowitz/react-toolbox,soyjavi/react-toolbox,rubenmoya/react-toolbox,react-toolbox/react-toolbox,jasonleibowitz/react-toolbox,rubenmoya/react-toolbox,rubenmoya/react-toolbox,showings/react-toolbox