message: Add Roadmap section to README
diff: @@ -55,6 +55,14 @@ We're happy to adjust this list according to users' needs as long as you don't
  ask for Internet Explorer support. If your environment does not support Wasm, we
  can work on a solution with swapable implementations.
  +## Roadmap
  +
  +In addition to the
  +[development board](https://github.com/orgs/CosmWasm/projects/2) and our
  +[release milestones](https://github.com/CosmWasm/cosmjs/milestones), we maintain
  +a higher level roadmap
  +[in this Trello board](https://trello.com/b/vIW8awLl/cosmjs-roadmap).
  +
  ## Development
  Requires Node 10+. For best results, use yarn. The basic commands are:
  