message: Use minigo-pub as an example instead.
diff: boardsize. Note that each model can only play a specific size of Go board.
  ```shell
  - BUCKET_NAME=tensor-go-minigo-v5-19
  - GCS_DIR=models
  - MODEL=000570-kingfisher
  + BUCKET_NAME=minigo-pub
  + GCS_DIR=v5-19x19/models
  + MODEL=000363-auriga
  MODEL_DIR=/tmp/minigo-models
  BOARD_SIZE=19
  ```
  