message: generate go sdk for authorization
diff: @@ -18,6 +18,7 @@ batch:
  - tag: package-2018-01-01-preview
  - tag: package-2018-07-01-preview
  - tag: package-2018-09-01-preview
  + - tag: package-2020-04-preview
  ```
  ### Tag: package-2015-07-01 and go
  @@ -64,3 +65,12 @@ Please also specify `--go-sdk-folder=<path to the root directory of your azure-s
  ``` yaml $(tag) == 'package-2018-09-01-preview' && $(go)
  output-folder: $(go-sdk-folder)/services/preview/$(namespace)/mgmt/2018-09-01-preview/$(namespace)
  ```
  +
  +### Tag: package-2020-04-preview and go
  +
  +These settings apply only when `--tag=package-2020-04-preview --go` is specified on the command line.
  +Please also specify `--go-sdk-folder=<path to the root directory of your azure-sdk-for-go clone>`.
  +
  +``` yaml $(tag) == 'package-2020-04-preview' && $(go)
  +output-folder: $(go-sdk-folder)/services/preview/$(namespace)/mgmt/2020-04-01-preview/$(namespace)
  +```
  