nou-say-hello 0.3.0

this is say hello library
Documentation 
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#[cfg(feature = "hello")]
pub fn say_hello(name: &str) -> String {
    format!("Hello, {}!", name)
}

#[cfg(feature = "hello")]
pub fn say_hello_everyone() -> String {
    format!("Hello everyone!")
}

#[cfg(feature = "bye")]
pub fn say_goodbye(name: &str) -> String {
    format!("Goodbye, {}!", name)
}

#[cfg(feature = "bye")]
pub fn say_goodbye_everyone() -> String {
    format!("Goodbye everyone!")
}