message: [typo] Fix typo on sequence number
  Fix typo
diff: @@ -529,7 +529,7 @@ impl ClientProxy {
  self.get_account_state_and_update(account)
  }
  - /// Get committed txn by account and sequnce number.
  + /// Get committed txn by account and sequence number.
  pub fn get_committed_txn_by_acc_seq(
  &mut self,
  space_delim_strings: &[&str],
  