Update commented provisioner

Author: surajmandalcell

provisioner.tf

@@ -1,13 +1,12 @@
 # resource "null_resource" "remote-exec" {
-#   # count      = 2
-#   depends_on = [oci_core_instance.instance-2, oci_core_instance.instance-3]
+#   # count      = 3
+#   depends_on = [oci_core_instance.instance-1,oci_core_instance.instance-2, oci_core_instance.instance-3]
 
 #   provisioner "remote-exec" {
 #     connection {
 #       agent = false
 #       type  = "ssh"
-#       # host        = "oci_core_instance.instance-${count.index + 1}.public_ip"
-#       host        = oci_core_instance.instance-2.public_ip
+#       host        = "oci_core_instance.instance-${count.index}.public_ip"
 #       user        = "ubuntu"
 #       private_key = file(local.private_key_path)
 #       timeout     = "3m"