fix: Formatting and docs

src/onchain/secp256k1/Secp256k1Arithmetic.sol

@@ -126,11 +126,6 @@ library Secp256k1Arithmetic {
     }
 
     /// @dev Returns whether point `point` is the identity.
-    ///
-    /// @dev Note that the identity is represented via:
-    ///         point.x = point.y = type(uint).max
-    ///
-    /// @dev Note that the identity is also called point at infinity.
     function isIdentity(Point memory point) internal pure returns (bool) {
         return (point.x | point.y) == 0;
     }

src/onchain/secp256k1/signatures/ECDSA.sol

@@ -96,17 +96,17 @@ library ECDSA {
     /// @custom:invariant No valid public key's address is zero.
     ///     ∀ pk ∊ PublicKey: pk.isValid() → pk.toAddress() != address(0)
     function verify(
-        PublicKey memory pl,
+        PublicKey memory pk,
         bytes memory message,
         Signature memory sig
     ) internal pure returns (bool) {
-        if (!pl.isValid()) {
+        if (!pk.isValid()) {
             revert("PublicKeyInvalid()");
         }
 
         bytes32 digest = keccak256(message);
 
-        return pl.toAddress().verify(digest, sig);
+        return pk.toAddress().verify(digest, sig);
     }
 
     /// @dev Returns whether public key `pk` signs via ECDSA signature `sig`

test/onchain/secp256k1/Secp256k1Arithmetic.t.sol

@@ -444,7 +444,9 @@ contract Secp256k1ArithmeticTest is Test {
         assertEq(blob, hex"00");
     }
 
-    function testFuzz_Point_toEncoded_RevertsIf_PointNotOnCurve(Point memory point) public {
+    function testFuzz_Point_toEncoded_RevertsIf_PointNotOnCurve(
+        Point memory point
+    ) public {
         vm.assume(!point.isOnCurve());
 
         vm.expectRevert("PointNotOnCurve()");