--------------- APP page ----------------
// custo tag by the programmer in React -- are not html tag
    <Note
    title = "The first note"
    detail = "note Detail"
     />
    <Note
    title = "The second note"
    detail = "note Detail"
     />

---------------- Note Page html page ------------


function Note(props){
    return (
    <div className="note">
        <h1>{props.title}</h1>
        <p>{props.detail}</p>
    </div>
    )
}