message: Docker README.md "build" typo
diff: @@ -29,7 +29,7 @@ docker build -t eosio/eos:dawn-v4.0.0 --build-arg branch=dawn-v4.0.0 .
  By default, the symbol in eosio.system is set to SYS. You can override this using the symbol argument while building the docker image.
  ```bash
  -docker built -t eosio/eos --build-arg symbol=<symbol> .
  +docker build -t eosio/eos --build-arg symbol=<symbol> .
  ```
  ## Start nodeos docker container only
  