add stack hci settings (#18563)

specification/azurestackhci/resource-manager/readme.az.md

@@ -0,0 +1,60 @@
+# AZ
+
+These settings apply only when `--az` is specified on the command line.
+
+``` yaml $(az)
+az:
+    extensions: stack-hci
+    namespace: azure.mgmt.azurestackhci
+    package-name: azure-mgmt-azurestackhci
+az-output-folder: $(azure-cli-extension-folder)/src/stack-hci
+python-sdk-output-folder: "$(az-output-folder)/azext_stack_hci/vendored_sdks/azurestackhci"
+
+# add additional configuration here specific for Azure CLI
+# refer to the faq.md for more details
+cli:
+  cli-directive:
+# add alias to long parameters
+    - where:
+        group: ArcSettings
+        op: Create
+        parameter: arcInstanceResourceGroup
+      alias:
+        - instance_rg
+    - where:
+        group: Clusters
+        op: Create
+        parameter: cloudManagementEndpoint
+      alias:
+        - endpoint
+    - where:
+        group: Clusters
+        op: Update
+        parameter: cloudManagementEndpoint
+      alias:
+        - endpoint
+    - where:
+        group: Extensions
+        op: Create
+        parameter: autoUpgradeMinorVersion
+      alias:
+        - auto_upgrade
+    - where:
+        group: Extensions
+        op: Update
+        parameter: autoUpgradeMinorVersion
+      alias:
+        - auto_upgrade
+    - where:
+        group: Extensions
+        op: Create
+        parameter: type
+      alias:
+        - type
+    - where:
+        group: Extensions
+        op: Update
+        parameter: type
+      alias:
+        - type
+```