correct spelling of native in docs

Co-authored-by: rsoeldner <[email protected]>

src/Crypto/Hash/Keccak256Native.hs

@@ -6,7 +6,7 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TypeApplications #-}
 
--- | Implementation of the `keccack256` pact native.
+-- | Implementation of the `keccak256` pact native.
 --
 --   `keccak256` takes as input a Pact object representing a
 --   'HyperlaneMessage', and returns a base16-encoded hash of the abi-encoding