Update README with new "backends" syntax

One of the last changes in PR terraform-google-modules#52 (Terraform 0.12 compatibility) was to make all of these attributes required, or explicitly set to null if we do not want to change the default values. The implementation across the example code was updated, but it looks like this entry in the README was missed
rjackson · Oct 8, 2019 · f9be305 · f9be305
1 parent 0928a49
commit f9be305
Showing 1 changed file with 22 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -14,8 +14,28 @@ module "gce-lb-http" {
   target_tags       = [module.mig1.target_tags, module.mig2.target_tags]
   backends          = {
     "0" = [
-      { group = module.mig1.instance_group },
-      { group = module.mig2.instance_group }
+      {
+        group = module.mig1.instance_group
+        balancing_mode               = null
+        capacity_scaler              = null
+        description                  = null
+        max_connections              = null
+        max_connections_per_instance = null
+        max_rate                     = null
+        max_rate_per_instance        = null
+        max_utilization              = null
+      },
+      {
+        group = module.mig2.instance_group
+        balancing_mode               = null
+        capacity_scaler              = null
+        description                  = null
+        max_connections              = null
+        max_connections_per_instance = null
+        max_rate                     = null
+        max_rate_per_instance        = null
+        max_utilization              = null
+      }
     ],
   }
   backend_params    = [