pub fn run(config: Config) -> Result<(), Box<dyn Error>> {
    // get content that is re-usable by multiple functions

pub fn list_notes(config: &Config) -> Result<(), Box<dyn Error>> {

    let contents = fs::read_to_string(config.fpath)?;

    let contents = fs::read_to_string(&config.fpath)?;

pub fn show_notes(config: &Config) -> Result<(), Box<dyn Error>> {
    Err(Box::from("show not implemented"))
}
pub fn edit_notes(config: &Config) -> Result<(), Box<dyn Error>> {
    Err(Box::from("edit not implemented"))
}
pub fn run(config: Config) -> Result<(), Box<dyn Error>> {
    // get content that is re-usable by multiple functions
    match config.action {
        Action::List => list_notes(&config),
        Action::Edit => edit_notes(&config),
        Action::Show => show_notes(&config),
    }
}