Use return instead of param for return parameter documentation

src/sd59x18/Conversions.sol

@@ -12,7 +12,7 @@ import { SD59x18 } from "./ValueType.sol";
 /// - x ≤ `MAX_SD59x18 / UNIT`
 ///
 /// @param x The basic integer to convert.
-/// @param result The same number converted to SD59x18.
+/// @return result The same number converted to SD59x18.
 function convert(int256 x) pure returns (SD59x18 result) {
     if (x < uMIN_SD59x18 / uUNIT) {
         revert PRBMath_SD59x18_Convert_Underflow(x);

src/sd59x18/Math.sol

@@ -29,7 +29,7 @@ import { SD59x18 } from "./ValueType.sol";
 /// - x > MIN_SD59x18.
 ///
 /// @param x The SD59x18 number for which to calculate the absolute value.
-/// @param result The absolute value of x as an SD59x18 number.
+/// @return result The absolute value of x as an SD59x18 number.
 /// @custom:smtchecker abstract-function-nondet
 function abs(SD59x18 x) pure returns (SD59x18 result) {
     int256 xInt = x.unwrap();
@@ -78,7 +78,7 @@ function avg(SD59x18 x, SD59x18 y) pure returns (SD59x18 result) {
 /// - x ≤ MAX_WHOLE_SD59x18
 ///
 /// @param x The SD59x18 number to ceil.
-/// @param result The smallest whole number greater than or equal to x, as an SD59x18 number.
+/// @return result The smallest whole number greater than or equal to x, as an SD59x18 number.
 /// @custom:smtchecker abstract-function-nondet
 function ceil(SD59x18 x) pure returns (SD59x18 result) {
     int256 xInt = x.unwrap();
@@ -118,7 +118,7 @@ function ceil(SD59x18 x) pure returns (SD59x18 result) {
 ///
 /// @param x The numerator as an SD59x18 number.
 /// @param y The denominator as an SD59x18 number.
-/// @param result The quotient as an SD59x18 number.
+/// @return result The quotient as an SD59x18 number.
 /// @custom:smtchecker abstract-function-nondet
 function div(SD59x18 x, SD59x18 y) pure returns (SD59x18 result) {
     int256 xInt = x.unwrap();
@@ -243,7 +243,7 @@ function exp2(SD59x18 x) pure returns (SD59x18 result) {
 /// - x ≥ MIN_WHOLE_SD59x18
 ///
 /// @param x The SD59x18 number to floor.
-/// @param result The greatest whole number less than or equal to x, as an SD59x18 number.
+/// @return result The greatest whole number less than or equal to x, as an SD59x18 number.
 /// @custom:smtchecker abstract-function-nondet
 function floor(SD59x18 x) pure returns (SD59x18 result) {
     int256 xInt = x.unwrap();
@@ -270,7 +270,7 @@ function floor(SD59x18 x) pure returns (SD59x18 result) {
 /// of the radix point for negative numbers.
 /// @dev Based on the odd function definition. https://en.wikipedia.org/wiki/Fractional_part
 /// @param x The SD59x18 number to get the fractional part of.
-/// @param result The fractional part of x as an SD59x18 number.
+/// @return result The fractional part of x as an SD59x18 number.
 function frac(SD59x18 x) pure returns (SD59x18 result) {
     result = wrap(x.unwrap() % uUNIT);
 }

src/ud60x18/Conversions.sol

@@ -19,7 +19,7 @@ function convert(UD60x18 x) pure returns (uint256 result) {
 /// - x ≤ MAX_UD60x18 / UNIT
 ///
 /// @param x The basic integer to convert.
-/// @param result The same number converted to UD60x18.
+/// @return result The same number converted to UD60x18.
 function convert(uint256 x) pure returns (UD60x18 result) {
     if (x > uMAX_UD60x18 / uUNIT) {
         revert PRBMath_UD60x18_Convert_Overflow(x);

src/ud60x18/Math.sol

@@ -62,7 +62,7 @@ function avg(UD60x18 x, UD60x18 y) pure returns (UD60x18 result) {
 /// - x ≤ MAX_WHOLE_UD60x18
 ///
 /// @param x The UD60x18 number to ceil.
-/// @param result The smallest whole number greater than or equal to x, as a UD60x18 number.
+/// @return result The smallest whole number greater than or equal to x, as a UD60x18 number.
 /// @custom:smtchecker abstract-function-nondet
 function ceil(UD60x18 x) pure returns (UD60x18 result) {
     uint256 xUint = x.unwrap();
@@ -94,7 +94,7 @@ function ceil(UD60x18 x) pure returns (UD60x18 result) {
 ///
 /// @param x The numerator as a UD60x18 number.
 /// @param y The denominator as a UD60x18 number.
-/// @param result The quotient as a UD60x18 number.
+/// @return result The quotient as a UD60x18 number.
 /// @custom:smtchecker abstract-function-nondet
 function div(UD60x18 x, UD60x18 y) pure returns (UD60x18 result) {
     result = wrap(Common.mulDiv(x.unwrap(), uUNIT, y.unwrap()));
@@ -157,7 +157,7 @@ function exp2(UD60x18 x) pure returns (UD60x18 result) {
 /// @dev Optimized for fractional value inputs, because every whole value has (1e18 - 1) fractional counterparts.
 /// See https://en.wikipedia.org/wiki/Floor_and_ceiling_functions.
 /// @param x The UD60x18 number to floor.
-/// @param result The greatest whole number less than or equal to x, as a UD60x18 number.
+/// @return result The greatest whole number less than or equal to x, as a UD60x18 number.
 /// @custom:smtchecker abstract-function-nondet
 function floor(UD60x18 x) pure returns (UD60x18 result) {
     assembly ("memory-safe") {
@@ -172,7 +172,7 @@ function floor(UD60x18 x) pure returns (UD60x18 result) {
 /// @notice Yields the excess beyond the floor of x using the odd function definition.
 /// @dev See https://en.wikipedia.org/wiki/Fractional_part.
 /// @param x The UD60x18 number to get the fractional part of.
-/// @param result The fractional part of x as a UD60x18 number.
+/// @return result The fractional part of x as a UD60x18 number.
 /// @custom:smtchecker abstract-function-nondet
 function frac(UD60x18 x) pure returns (UD60x18 result) {
     assembly ("memory-safe") {