Added sample model for configured cluster (#626)

* JIRA WDT-407 Added sample model for configured cluster

* JIRA WDT-410 Fixed typo

Author: rakillen

site/samples/configured_cluster.md

@@ -0,0 +1,48 @@
+## Configured Cluster Sample
+
+This WDT domain model sample section has a typical configuration for a configured cluster with a single managed server, including connection information, logging setup, and other details. 
+
+```yaml
+topology:
+    Cluster:
+        'cluster-1':
+            ClientCertProxyEnabled: true
+            AutoMigrationTableName: MIGRATION_1
+            DataSourceForAutomaticMigration: 'jdbc-1'
+            ClusterMessagingMode: unicast
+            FrontendHost: frontend.com
+            FrontendHTTPPort: 9001
+            FrontendHTTPSPort: 9002
+            MigrationBasis: database
+            NumberOfServersInClusterAddress: 5
+            WeblogicPluginEnabled: true
+
+    Server:
+        'server-1':
+            Cluster: 'cluster-1'  # this server belongs to cluster-1
+            ListenAddress: 127.0.0.1
+            ListenPort: 8001
+            Machine: 'machine-1'
+            Log:
+                DomainLogBroadcastSeverity: Error
+                FileCount: 7
+                FileMinSize: 5000
+                FileName: 'logs/AdminServer.log'
+                LogFileSeverity: Info
+                MemoryBufferSeverity: Notice
+                NumberOfFilesLimited: true
+                RotateLogOnStartup: true
+                RotationType: bySize
+            SSL:
+                Enabled: true
+                ListenPort: 8002
+            ServerStart:
+                Arguments: '-Dosgi=true -Dtangosol.coherence.management=all'
+                ClassPath: '/foo/bar,wlsdeploy/classpathLibraries/mylib.jar'
+```
+There are additional sub-folders and attributes available for more configuration options. These can be determined using the [Model Help Tool](../model_help.md). For example, this command will list the attributes and sub-folders for the `Server` folder:
+```yaml
+${WDT_HOME}/bin/modelHelp.sh -oracle_home /tmp/oracle topology:/Server
+```
+
+For this sample, the machine named `machine-1` and the data source named `jdbc-1` should be defined elsewhere within this model, or should already exist in a domain that is being updated.

site/samples/samples.md

@@ -7,5 +7,6 @@ You can use the [Model Help Tool](../model_help.md) to determine the complete li
 ${WDT_HOME}/bin/modelHelp.sh -oracle_home /tmp/oracle resources:/JDBCSystemResource/JdbcResource
 ```
 ## Contents
+- [Configured Cluster Sample](configured_cluster.md)
 - [JDBC Sample](jdbc.md)
 - [Work Manager Sample](work_manager.md)