add directive mobilenetwork reademe.go.md (Azure#24942)

Author: Alancere

specification/mobilenetwork/resource-manager/readme.go.md

@@ -8,4 +8,25 @@ module-name: sdk/resourcemanager/mobilenetwork/armmobilenetwork
 module: github.com/Azure/azure-sdk-for-go/$(module-name)
 output-folder: $(go-sdk-folder)/$(module-name)
 azure-arm: true
+directive:
+  - where-operation: PacketCoreControlPlaneVersions_GetBySubscription
+    transform: >
+      $.parameters[1] = {
+        "name": "subscriptionId",
+        "in": "path",
+        "required": true,
+        "type": "string",
+        "format": "uuid",
+        "description": "The ID of the target subscription. The value must be an UUID."
+      };
+  - where-operation: PacketCoreControlPlaneVersions_ListBySubscription
+    transform: > 
+      $.parameters[0] = {
+        "name": "subscriptionId",
+        "in": "path",
+        "required": true,
+        "type": "string",
+        "format": "uuid",
+        "description": "The ID of the target subscription. The value must be an UUID."
+      };
 ```