message: Update CHANGELOG for InstantiateOptions change
diff: @@ -18,6 +18,12 @@ and this project adheres to
  ### Changed
  +- @cosmjs/cosmwasm-launchpad: The `transferAmount` property on
  + `InstantiateOptions` (accepted as a parameter to
  + `SigningCosmWasmClient.instantiate`) has been renamed to `funds`.
  +- @cosmjs/cosmwasm-stargate: The `transferAmount` property on
  + `InstantiateOptions` (accepted as a parameter to
  + `SigningCosmWasmClient.instantiate`) has been renamed to `funds`.
  - @cosmjs/tendermint-rpc: Make `tendermint34.Header.lastBlockId` and
  `tendermint34.Block.lastCommit` optional to better handle the case of height 1
  where there is no previous block.
  