The getters2's discuss from novafacing

getters2's Issues

`README.md` first example is invalid

the first example provides #[derive(getters(mutable, clone, deref))], which should be #[getters(mutable, clone, deref)].

From

use getters2::Getters;
#[derive(Getters)]
#[derive(getters(mutable, clone, deref))]
struct Vector3 {
   x: f32,
   y: f32,
   z: f32,
   #[getters(skip, skip_mutable, skip_clone, skip_deref)]
   name: String,
}

let mut v = Vector3 { x: 1.0, y: 2.0, z: 3.0, name: "MyVec".to_string() };
assert_eq!(v.x_ref(), &1.0);
assert_eq!(v.y_ref(), &2.0);
assert_eq!(v.z_ref(), &3.0);
assert_eq!(v.x_deref(), 1.0);
assert_eq!(v.y_deref(), 2.0);
assert_eq!(v.z_deref(), 3.0);
assert_eq!(v.x_clone(), 1.0);
assert_eq!(v.y_clone(), 2.0);
assert_eq!(v.z_clone(), 3.0);
*v.x_mut() = 4.0;
*v.y_mut() = 5.0;
*v.z_mut() = 6.0;
assert_eq!(v.x_ref(), &4.0);
assert_eq!(v.y_ref(), &5.0);
assert_eq!(v.z_ref(), &6.0);

Into

use getters2::Getters;
#[derive(Getters)]
#[getters(mutable, clone, deref)]
struct Vector3 {
   x: f32,
   y: f32,
   z: f32,
   #[getters(skip, skip_mutable, skip_clone, skip_deref)]
   name: String,
}

let mut v = Vector3 { x: 1.0, y: 2.0, z: 3.0, name: "MyVec".to_string() };
assert_eq!(v.x_ref(), &1.0);
assert_eq!(v.y_ref(), &2.0);
assert_eq!(v.z_ref(), &3.0);
assert_eq!(v.x_deref(), 1.0);
assert_eq!(v.y_deref(), 2.0);
assert_eq!(v.z_deref(), 3.0);
assert_eq!(v.x_clone(), 1.0);
assert_eq!(v.y_clone(), 2.0);
assert_eq!(v.z_clone(), 3.0);
*v.x_mut() = 4.0;
*v.y_mut() = 5.0;
*v.z_mut() = 6.0;
assert_eq!(v.x_ref(), &4.0);
assert_eq!(v.y_ref(), &5.0);
assert_eq!(v.z_ref(), &6.0);