Make variables variable, add watched_enabled

resource.linode_instance.this.tf

@@ -1,11 +1,12 @@
 resource "linode_instance" "this" {
-  authorized_keys = var.authorized_keys
-  backups_enabled = true
-  booted          = true
-  label           = "${var.host_name}.${var.domain_name}"
-  image           = var.image
-  private_ip      = true
-  tags            = var.tags
-  type            = var.type
-  region          = var.region
+  authorized_keys  = var.authorized_keys
+  backups_enabled  = var.backups_enabled
+  booted           = var.booted
+  label            = "${var.host_name}.${var.domain_name}"
+  image            = var.image
+  private_ip       = var.private_ip
+  tags             = var.tags
+  type             = var.type
+  region           = var.region
+  watchdog_enabled = var.watchdog_enabled
 }