Core proxy doc (#9593)
Core proxy doc (#9593)

* Revert "Generated from 1f5a1bea9d656db85e7285f259aced9f48278b45 (#9519)"

This reverts commit 919b13942fad7b68f8bfb9fc10db1f6ce141591f.

* add proxy doc

* update

Azure/azure-sdk-for-python,Azure/azure-sdk-for-python,Azure/azure-sdk-for-python,Azure/azure-sdk-for-python