[key vault] improve python readme and add multiapi client generation

specification/keyvault/data-plane/readme.python.md

@@ -4,65 +4,65 @@ These settings apply only when `--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>`.
 Use `--python-mode=update` if you already have a setup.py and just want to update the code itself.
 
-``` yaml $(python)
-python-mode: create
-python:
-  azure-arm: true
-  license-header: MICROSOFT_MIT_NO_VERSION
-  payload-flattening-threshold: 2
-  package-name: azure-keyvault
-  clear-output-folder: true
-  no-namespace-folders: true
+``` yaml
+license-header: MICROSOFT_MIT_NO_VERSION
+payload-flattening-threshold: 2
+package-name: azure-keyvault
+clear-output-folder: true
+no-namespace-folders: true
 ```
 
 ### Python multi-api
 
 Generate all API versions currently shipped for this package
 
-```yaml $(python) && $(multiapi)
+```yaml $(multiapi)
 batch:
   - tag: package-7.2-preview
   - tag: package-7.1-preview
   - tag: package-7.0
   - tag: package-2016-10
+  - multiapiscript: true
+```
+
+``` yaml $(multiapiscript)
+output-folder: $(python-sdks-folder)/keyvault/azure-keyvault/azure/keyvault/
+clear-output-folder: false
+perform-load: false
 ```
 
 ### Tag: package-7.2-preview and python
 
 These settings apply only when `--tag=package-7.2-preview --python` is specified on the command line.
 
-``` yaml $(tag) == 'package-7.2-preview' && $(python)
-python:
-  namespace: azure.keyvault.v7_2
-  output-folder: $(python-sdks-folder)/keyvault/azure-keyvault/azure/keyvault/v7_2_preview
+``` yaml $(tag) == 'package-7.2-preview'
+namespace: azure.keyvault.v7_2
+output-folder: $(python-sdks-folder)/keyvault/azure-keyvault/azure/keyvault/v7_2_preview
 ```
 
 ### Tag: package-7.1-preview and python
 
 These settings apply only when `--tag=package-7.1-preview --python` is specified on the command line.
 
-``` yaml $(tag) == 'package-7.1-preview' && $(python)
-python:
-  namespace: azure.keyvault.v7_1
-  output-folder: $(python-sdks-folder)/keyvault/azure-keyvault/azure/keyvault/v7_1_preview
+``` yaml $(tag) == 'package-7.1-preview'
+namespace: azure.keyvault.v7_1
+output-folder: $(python-sdks-folder)/keyvault/azure-keyvault/azure/keyvault/v7_1_preview
 ```
 
 ### Tag: package-7.0 and python
 
 These settings apply only when `--tag=package-7.0 --python` is specified on the command line.
 
-``` yaml $(tag) == 'package-7.0' && $(python)
-python:
-  namespace: azure.keyvault.v7_0
-  output-folder: $(python-sdks-folder)/keyvault/azure-keyvault/azure/keyvault/v7_0
+``` yaml $(tag) == 'package-7.0'
+namespace: azure.keyvault.v7_0
+output-folder: $(python-sdks-folder)/keyvault/azure-keyvault/azure/keyvault/v7_0
 ```
 
 ### Tag: package-2016-10 and python
 
 These settings apply only when `--tag=package-2016-10 --python` is specified on the command line.
 
-``` yaml $(tag) == 'package-2016-10' && $(python)
-python:
-  namespace: azure.keyvault.v2016_10_01
-  output-folder: $(python-sdks-folder)/keyvault/azure-keyvault/azure/keyvault/v2016_10_01
+``` yaml $(tag) == 'package-2016-10'
+namespace: azure.keyvault.v2016_10_01
+output-folder: $(python-sdks-folder)/keyvault/azure-keyvault/azure/keyvault/v2016_10_01
 ```