fix deprecated note

somewhere in `lib.rs` around line 1500:

```rust
    #[inline]
    #[deprecated(
        since = "2.0.0-alpha.13",
        note = "use `TryInto::<[T; N]>::into` instead"
    )]
    pub fn into_inner(self) -> Result<[T; N], Self> {
```

fix the note so that it references the `::try_into` method instead of the `::into` method