docs: move comment to the right place

src/SpeedJumpIrm.sol

@@ -164,9 +164,9 @@ contract AdaptativeCurveIrm is IIrm {
     /// r = ((1-1/C)*err + 1) * rateAtTarget if err < 0
     ///     ((C-1)*err + 1) * rateAtTarget else.
     function _curve(uint256 _rateAtTarget, int256 err) private view returns (uint256) {
-        // Safe "unchecked" cast because err >= -1 (in WAD).
         uint256 steeringCoeff = err < 0 ? WAD - WAD.wDivDown(CURVE_STEEPNESS) : CURVE_STEEPNESS - WAD;
 
+        // Safe "unchecked" cast because err >= -1 (in WAD).
         return uint256(steeringCoeff.wMulDown(err) + WAD_INT).wMulDown(_rateAtTarget);
     }
 }