message: fix the documentation
diff: @@ -9,12 +9,12 @@ use cbor::hs::{ToCBOR, FromCBOR};
  use hdwallet::{XPub};
  use hdpayload::{HDAddressPayload};
  +/// Digest of the composition of `Blake2b_224 . Sha3_256`
  #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Copy, Clone)]
  pub struct DigestBlake2b224([u8;28]);
  impl DigestBlake2b224 {
  - /// this function create the blake2b 224 digest of the given input
  - /// This function is not responsible for the serialisation of the data
  - /// in CBOR.
  + /// create digest from the given inputs by computing the SHA3_256 and
  + /// then the Blake2b_224.
  ///
  pub fn new(buf: &[u8]) -> Self
  {
  