message: Fix output-folder of storage for go SDK
diff: @@ -35,7 +35,7 @@ These settings apply only when `--tag=package-2020-08-preview --go` is specified
  Please also specify `--go-sdk-folder=<path to the root directory of your azure-sdk-for-go clone>`.
  ``` yaml $(tag) == 'package-2020-08-preview' && $(go)
  -output-folder: $(go-sdk-folder)/services/preview/$(namespace)/mgmt/2020-08-preview/$(namespace)
  +output-folder: $(go-sdk-folder)/services/preview/$(namespace)/mgmt/2020-08-01-preview/$(namespace)
  ```
  ### Tag: package-2019-06 and go
  