message: monitor readme fix
diff: @@ -74,6 +74,12 @@ batch:
  - multiapiscript: true
  ```
  +``` yaml $(multiapiscript)
  +output-folder: $(python-sdks-folder)/monitor/azure-mgmt-monitor/azure/mgmt/monitor/
  +clear-output-folder: false
  +perform-load: false
  +```
  +
  ### Tag: package-2019-10-17-preview-only and python
  These settings apply only when `--tag=package-2019-10-17-preview-only --python` is specified on the command line.
  