Import of service instance sharing resource. documentation

Author: sderkaczdv

docs/resources/service_instance_sharing.md

@@ -51,3 +51,25 @@ resource "cloudfoundry_service_instance_sharing" "instance_sharing" {
 - `service_instance` (String) The ID of the service instance to share.
 - `spaces` (Set of String) The IDs of the spaces to share the service instance with.
 
+### Read-Only
+
+- `id` (String) The GUID of the object. This will be the same as the service_instance GUID.
+
+## Import
+
+Import is supported using the following syntax:
+
+```terraform
+# terraform import cloudfoundry_service_instance_sharing.<resource_name> <service_instance_guid>
+
+terraform import cloudfoundry_service_instance_sharing.my_instance_sharing a1b2c3d4-5678-90ab-cdef-12345678abcd
+```
+
+For Terraform 1.5+ users, you can also use the newer import blocks syntax:
+
+```terraform
+import {
+  to = cloudfoundry_service_instance_sharing.my_instance_sharing
+  id = "a1b2c3d4-5678-90ab-cdef-12345678abcd"
+}
+```