Update readme.python.md (Azure#23033)

Author: msyyc

specification/web/resource-manager/readme.python.md

@@ -20,10 +20,10 @@ Generate all API versions currently shipped for this package
 
 ```yaml $(python)
 multiapi: true
-default-api-version: "2022-03-01"
+default-api-version: "2022-09-01"
 clear-output-folder: true
 batch:
-  - tag: package-2022-03-only
+  - tag: package-2022-09
   - tag: package-2021-03-only
   - tag: package-2021-01-15-only
   - tag: package-2021-01-only
@@ -46,14 +46,14 @@ output-folder: $(python-sdks-folder)/appservice/azure-mgmt-web/azure/mgmt/web/
 perform-load: false
 
 ```
-### Tag: package-2022-03-only and python
+### Tag: package-2022-09 and python
 
-These settings apply only when `--tag=package-2022-03-only --python` is specified on the command line.
+These settings apply only when `--tag=package-2022-09 --python` is specified on the command line.
 Please also specify `--python-sdks-folder=<path to the root directory of your azure-sdk-for-python clone>`.
 
-``` yaml $(tag) == 'package-2022-03-only' && $(python)
-namespace: azure.mgmt.web.v2022_03_01
-output-folder: $(python-sdks-folder)/appservice/azure-mgmt-web/azure/mgmt/web/v2022_03_01
+``` yaml $(tag) == 'package-2022-09' && $(python)
+namespace: azure.mgmt.web.v2022_09_01
+output-folder: $(python-sdks-folder)/appservice/azure-mgmt-web/azure/mgmt/web/v2022_09_01
 ```
 
 ```