message: change docker tag in readme
diff: @@ -157,7 +157,7 @@ Note: if you want to use the mongo db plugin, you have to enable it in your `dat
  ```
  # pull images
  -docker pull eosio/eos:dawn3x
  +docker pull eosio/eos:latest
  # create volume
  docker volume create --name=nodeos-data-volume
  docker volume create --name=keosd-data-volume
  