message: add after_script for python
diff: @@ -50,6 +50,8 @@ This is not used by Autorest itself.
  ```yaml $(swagger-to-sdk)
  swagger-to-sdk:
  - repo: azure-sdk-for-python
  + after_scripts:
  + - python ./scripts/multiapi_init_gen.py azure-mgmt-redhatopenshift
  - repo: azure-sdk-for-go
  ```
  