Make masters schedulable in byo example

... but note why you wouldn't want them to be

inventory/byo/hosts.example

@@ -76,7 +76,9 @@ ose3-master[1:3]-ansible.test.example.com
 [etcd]
 ose3-etcd[1:3]-ansible.test.example.com
 
-# host group for nodes
+# NOTE: Currently we require that masters be part of the SDN which requires that they also be nodes
+# However, in order to ensure that your masters are not burdened with running pods you should
+# make them unschedulable by adding openshift_scheduleable=False any node that's also a master.
 [nodes]
-ose3-master[1:3]-ansible.test.example.com openshift_scheduleable=False
+ose3-master[1:3]-ansible.test.example.com
 ose3-node[1:2]-ansible.test.example.com openshift_node_labels="{'region': 'primary', 'zone': 'default'}"