Change $float to {float} in relnotes

Co-authored-by: Urgau <3616612+Urgau@users.noreply.github.com>

Author: cuviper

RELEASES.md

@@ -121,22 +121,22 @@ These APIs are now stable in const contexts:
 - [`UnsafeCell::into_inner`](https://doc.rust-lang.org/stable/core/cell/struct.UnsafeCell.html#method.into_inner)
 - [`array::from_mut`](https://doc.rust-lang.org/stable/core/array/fn.from_mut.html)
 - [`char::encode_utf8`](https://doc.rust-lang.org/stable/core/primitive.char.html#method.encode_utf8)
-- [`$float::classify`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.classify)
-- [`$float::is_finite`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_finite)
-- [`$float::is_infinite`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_infinite)
-- [`$float::is_nan`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_nan)
-- [`$float::is_normal`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_normal)
-- [`$float::is_sign_negative`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_sign_negative)
-- [`$float::is_sign_positive`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_sign_positive)
-- [`$float::is_subnormal`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_subnormal)
-- [`$float::from_bits`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_bits)
-- [`$float::from_be_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_be_bytes)
-- [`$float::from_le_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_le_bytes)
-- [`$float::from_ne_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_ne_bytes)
-- [`$float::to_bits`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_bits)
-- [`$float::to_be_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_be_bytes)
-- [`$float::to_le_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_le_bytes)
-- [`$float::to_ne_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_ne_bytes)
+- [`{float}::classify`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.classify)
+- [`{float}::is_finite`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_finite)
+- [`{float}::is_infinite`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_infinite)
+- [`{float}::is_nan`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_nan)
+- [`{float}::is_normal`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_normal)
+- [`{float}::is_sign_negative`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_sign_negative)
+- [`{float}::is_sign_positive`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_sign_positive)
+- [`{float}::is_subnormal`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_subnormal)
+- [`{float}::from_bits`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_bits)
+- [`{float}::from_be_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_be_bytes)
+- [`{float}::from_le_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_le_bytes)
+- [`{float}::from_ne_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_ne_bytes)
+- [`{float}::to_bits`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_bits)
+- [`{float}::to_be_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_be_bytes)
+- [`{float}::to_le_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_le_bytes)
+- [`{float}::to_ne_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_ne_bytes)
 - [`mem::replace`](https://doc.rust-lang.org/stable/core/mem/fn.replace.html)
 - [`ptr::replace`](https://doc.rust-lang.org/stable/core/ptr/fn.replace.html)
 - [`ptr::slice_from_raw_parts_mut`](https://doc.rust-lang.org/stable/core/ptr/fn.slice_from_raw_parts_mut.html)