Bug 1871802: customer feedback to make yaml filename consistent

Author: skrthomas

modules/installation-special-config-crony.adoc

@@ -40,13 +40,13 @@ additional `MachineConfig` object for the `worker` role:
 +
 [source,terminal]
 ----
-$ cat << EOF > ./masters-chrony-configuration.yaml
+$ cat << EOF > ./99-masters-chrony-configuration.yaml
 apiVersion: machineconfiguration.openshift.io/v1
 kind: MachineConfig
 metadata:
   labels:
     machineconfiguration.openshift.io/role: master
-  name: masters-chrony-configuration
+  name: 99-masters-chrony-configuration
 spec:
   config:
     ignition:
@@ -79,5 +79,5 @@ directory, and then continue to create the cluster.
 +
 [source,terminal]
 ----
- $ oc apply -f ./masters-chrony-configuration.yaml
+ $ oc apply -f ./99-masters-chrony-configuration.yaml
 ----