Fix WAN advanced network YML example indentation (#886)

* Add "last replication wins" info to modes doc

* Updates to Advanced Features

Update intro paragraph (missing content), additions and tweaks to Synchronizing WAN Clusters section

* Hyperlink fix

* Advanced Features feedback changes

* Advanced Features feedback part 2

* WAN rep modes feedback

* Typo fix

* YAML config example indentation fix

* Fix incorrect endpoint reference

(cherry picked from commit 098be2d)

docs/modules/wan/pages/advanced-features.adoc

@@ -1227,17 +1227,17 @@ hazelcast:
           factory-class-name: com.hazelcast.examples.MySSLContextFactory
           properties:
             endpoints: tokyo.example.com:11010
-    wan-replication:
-      replicate-to-tokyo:
-        batch-publisher:
-          cluster-name: clusterB
-          target-endpoints: ...
-          endpoint: tokyo
-    map:
-      customer:
-        wan-replication-ref:
-          replicate-to-tokyo:
-            merge-policy-class-name: ...
+  wan-replication:
+    replicate-to-tokyo:
+      batch-publisher:
+        cluster-name: clusterB
+        target-endpoints: ...
+        endpoint: endpoint-tokyo
+  map:
+    customer:
+      wan-replication-ref:
+        replicate-to-tokyo:
+          merge-policy-class-name: ...
 ----
 ====