message: Update CHANGELOG for hd wallet change
diff: @@ -56,6 +56,11 @@ and this project adheres to
  - @cosmjs/cosmwasm-stargate: Add `SigningCosmWasmClient.offline` static method
  for constructing offline clients without a Tendermint client.
  - @cosmjs/stargate: Add `SigningStargateClient.sendIbcTokens` method.
  +- @cosmjs/amino: Export `Secp256k1HdWalletOptions` interface.
  +- @cosmjs/amino: Add `bip39Password` option to `Secp256k1HdWallet` options.
  +- @cosmjs/proto-signing: Export `DirectSecp256k1HdWalletOptions` interface.
  +- @cosmjs/proto-signing: Add `bip39Password` option to `DirectSecp256k1HdWallet`
  + options.
  ### Changed
  @@ -100,6 +105,10 @@ and this project adheres to
  account is not found, instead of returning null.
  - @cosmjs/cosmwasm-stargate: `CosmWasmClient.getBalance` now returns a 0 balance
  instead of null.
  +- @cosmjs/amino: Options for `Secp256k1HdWallet.fromMnemonic` are now passed via
  + a `Secp256k1HdWalletOptions` object.
  +- @cosmjs/proto-signing: Options for `DirectSecp256k1HdWallet.fromMnemonic` are
  + now passed via a `DirectSecp256k1HdWalletOptions` object.
  ### Deprecated
  