message: add dawn3.0 docker setup README
diff: @@ -149,3 +149,21 @@ run `docker pull eosio/eos:latest`
  run `docker-compose up`
  +### Dawn3.0 Testnet
  +
  +We can easliy set up a dawn3.0 local testnet using docker images. Just run the following commands:
  +
  +```
  +# pull images
  +docker pull eosio/eos:dawn3x
  +# create volume
  +docker volume create --name=nodeos-data-volume
  +docker volume create --name=keosd-data-volume
  +# start containers
  +docker-compose -f docker-compose-dawn3.0.yml up -d
  +# get chain info
  +curl http://127.0.0.1:8888/v1/chain/get_info
  +# get logs
  +docker-compose logs nodeosd
  +```
  +
  