[Hub Generated] Updating definition of subscriptionId parameter for resources APIs in stable/2021-04-01 (Azure#14562)

* Adding sourceSubscriptionId parameter for Resource Move APIs

* Updating definition of subscriptionId parameteresources APIs

* Updating description for resource Move APIs parameters

Author: ifeoluwaokunoren

specification/resources/resource-manager/Microsoft.Resources/stable/2021-04-01/resources.json

@@ -2848,14 +2848,14 @@
         ],
         "operationId": "Resources_MoveResources",
         "summary": "Moves resources from one resource group to another resource group.",
-        "description": "The resources to move must be in the same source resource group. The target resource group may be in a different subscription. When moving resources, both the source group and the target group are locked for the duration of the operation. Write and delete operations are blocked on the groups until the move completes. ",
+        "description": "The resources to be moved must be in the same source resource group in the source subscription being used. The target resource group may be in a different subscription. When moving resources, both the source group and the target group are locked for the duration of the operation. Write and delete operations are blocked on the groups until the move completes. ",
         "parameters": [
           {
             "name": "sourceResourceGroupName",
             "in": "path",
             "required": true,
             "type": "string",
-            "description": "The name of the resource group containing the resources to move.",
+            "description": "The name of the resource group from the source subscription containing the resources to be moved.",
             "pattern": "^[-\\w\\._\\(\\)]+$",
             "minLength": 1,
             "maxLength": 90
@@ -2900,14 +2900,14 @@
         ],
         "operationId": "Resources_ValidateMoveResources",
         "summary": "Validates whether resources can be moved from one resource group to another resource group.",
-        "description": "This operation checks whether the specified resources can be moved to the target. The resources to move must be in the same source resource group. The target resource group may be in a different subscription. If validation succeeds, it returns HTTP response code 204 (no content). If validation fails, it returns HTTP response code 409 (Conflict) with an error message. Retrieve the URL in the Location header value to check the result of the long-running operation.",
+        "description": "This operation checks whether the specified resources can be moved to the target. The resources to be moved must be in the same source resource group in the source subscription being used. The target resource group may be in a different subscription. If validation succeeds, it returns HTTP response code 204 (no content). If validation fails, it returns HTTP response code 409 (Conflict) with an error message. Retrieve the URL in the Location header value to check the result of the long-running operation.",
         "parameters": [
           {
             "name": "sourceResourceGroupName",
             "in": "path",
             "required": true,
             "type": "string",
-            "description": "The name of the resource group containing the resources to validate for move.",
+            "description": "The name of the resource group from the source subscription containing the resources to be validated for move.",
             "pattern": "^[-\\w\\._\\(\\)]+$",
             "minLength": 1,
             "maxLength": 90
@@ -6603,7 +6603,7 @@
       "in": "path",
       "required": true,
       "type": "string",
-      "description": "The ID of the target subscription."
+      "description": "The Microsoft Azure subscription ID."
     },
     "DeploymentNameParameter": {
       "name": "deploymentName",