OCPBUGS-16396: Removed - in vSphere sample YAML file

Author: dfitzmau

modules/installation-installer-provisioned-vsphere-config-yaml.adoc

@@ -29,7 +29,7 @@ compute: <2>
   platform: {}
   replicas: 3
 controlPlane: <2>
-- architecture: amd64
+  architecture: amd64
   hyperthreading: Enabled <3>
   name: <parent_node>
   platform: {}