BUG REPORT

1. Please describe the issue you observed:

1. Current master has incompatible store data path.
2. Name server IP list auto-set function is not usable currently.
3. ROCKETMQ_HOME env of Image is incorrect.
4. README and example yaml files are incompatible.

• What did you do (The steps to reproduce)?
  Try to use the master branch code.

• What did you expect to see?
  The above questions to be solved.