message: Update readme for track2 settings.
diff: @@ -128,13 +128,16 @@ Use `--python-mode=update` if you already have a setup.py and just want to updat
  ``` yaml $(python)
  python-mode: create
  -python:
  license-header: MICROSOFT_MIT_NO_VERSION
  add-credentials: true
  payload-flattening-threshold: 2
  namespace: azure.cognitiveservices.vision.computervision
  package-name: azure-cognitiveservices-vision-computervision
  clear-output-folder: true
  +use: "@microsoft.azure/autorest.python@~4.0.71"
  +version: V2
  +multiapi: true
  +no-async: true
  directive:
  from: source-file-python
  @@ -143,12 +146,10 @@ directive:
  $ = $.replace( /self, mode, url,/g, "self, url, mode," );
  ```
  ``` yaml $(python) && $(python-mode) == 'update'
  -python:
  no-namespace-folders: true
  output-folder: $(python-sdks-folder)/cognitiveservices/azure-cognitiveservices-vision-computervision/azure/cognitiveservices/vision/computervision
  ```
  ``` yaml $(python) && $(python-mode) == 'create'
  -python:
  basic-setup-py: true
  output-folder: $(python-sdks-folder)/cognitiveservices/azure-cognitiveservices-vision-computervision
  ```
  