Sort num-traits impls by PR number

Author: tarcieri

CHANGELOG.md

@@ -29,8 +29,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   `DivRemLimb`/`RemLimb` ([#496]), `InvMod` ([#505], [#741]), `SquareRoot` ([#508]),
   `BitOperations` ([#507]), `ShrVartime`/`ShlVartime` ([#509]), `RandomBits` ([#510]),
   `RemMixed` ([#746])
-- `num-traits` impls: `Wrapping*` ([#425]), `Zero`/`One` ([#433]), `Num` ([#720]),
-  `ConstZero` ([#573])
+- `num-traits` impls: `Wrapping*` ([#425]), `Zero`/`One` ([#433]), `ConstZero` ([#573]),
+  `Num` ([#720])
 - safegcd (Bernstein-Yang) GCD + inv mod algorithm ([#372], [#493], [#632], [#635], [#655])
 - Constant-time square root and division ([#376])
 - Implement `Zeroize` for `NonZero` wrapper ([#406])