Adjust language about Default on enums

Author: daxpedda

README.md

@@ -94,8 +94,9 @@ struct Example<T, U>(PhantomData<T>, PhantomData<U>);
 
 ### Enum default
 
-Deriving [`Default`] on an enum is not possible in Rust at the moment.
-Derive-where allows this with a `default` attribute:
+Since Rust 1.62 deriving [`Default`] on an enum is possible with the
+`#[default]` attribute. Derive-where allows this with a
+`#[derive_where(default)]` attribute:
 
 ```rust
 #[derive_where(Default)]

src/lib.rs

@@ -108,8 +108,9 @@
 //!
 //! ## Enum default
 //!
-//! Deriving [`Default`] on an enum is not possible in Rust at the moment.
-//! Derive-where allows this with a `default` attribute:
+//! Since Rust 1.62 deriving [`Default`] on an enum is possible with the
+//! `#[default]` attribute. Derive-where allows this with a
+//! `#[derive_where(default)]` attribute:
 //!
 //! ```
 //! # use std::marker::PhantomData;