Update readme.python.md (#22421)

Author: msyyc

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

@@ -21,6 +21,7 @@ Generate all API versions currently shipped for this package
 multiapi: true
 clear-output-folder: true
 batch:
+  - tag: package-2023-01-31
   - tag: package-preview-2022-01
   - tag: package-preview-2021-09-30
   - tag: package-2018-11-30
@@ -32,6 +33,16 @@ output-folder: $(python-sdks-folder)/resources/azure-mgmt-msi/azure/mgmt/msi/
 perform-load: false
 ```
 
+### Tag: package-2023-01-31 and python
+
+These settings apply only when `--tag=package-2023-01-31 --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-2023-01-31'
+namespace: azure.mgmt.msi.v2023_01_31
+output-folder: $(python-sdks-folder)/resources/azure-mgmt-msi/azure/mgmt/msi/v2023_01_31
+```
+
 ### Tag: package-preview-2022-01 and python
 
 These settings apply only when `--tag=package-preview-2022-01 --python` is specified on the command line.