message: Fixed typo on README
diff: @@ -175,7 +175,7 @@ const rippleAddress = rnysDDrRXxz9z66DmCmfWpq4Z5s4TyUP3G;
  const bitcoinAddress = 1DiqLtKZZviDxccRpowkhVowsbLSNQWBE8;
  Utils.isValidAddress(rippleAddress); // returns true
  -Utils.siValidAddress(bitcoinAddress); // returns false
  +Utils.isValidAddress(bitcoinAddress); // returns false
  ```
  ## Development
  