Add example for access-mode header

modules/ROOT/pages/actions/transaction-configuration.adoc

@@ -5,17 +5,64 @@
 
 For any transaction-initiating request (such as `/tx` or `tx/commit`), you can provide configuration options that apply for the duration of the whole transaction.
 
+
+[[http-api-actions-access-mode]]
 == Access Mode
 
 To ensure efficient load balancing across a cluster, it is important to label transactions that only contain `READ` statements with a `READ` access mode.
 
 This can be done by adding an `access-mode` header to the request, with a value of `READ`.
 
-This feature was introduced in Neo4j version 4.4.4.
 
 [WARNING]
 ====
 If an `access-mode` configuration has *not* been provided, the default value is `WRITE`.
 
-However, if you have clusters with link:https://neo4j.com/docs/operations-manual/current/clustering/internals/#clustering-routing[Server-side routing] disabled, the default value is `READ`.
+However, if you have clusters with link:https://neo4j.com/docs/operations-manual/current/clustering/internals/#causal-clustering-routing[Server-side routing] disabled, the default value is `READ`.
+====
+
+[NOTE]
 ====
+Please note that `access-mode` is not required for a Neo4j single instance.
+====
+
+_Example request_
+
+* *+POST+* +http://localhost:7474/db/neo4j/tx/commit+
+* *+Accept:+* +application/json;charset=UTF-8+
+* *+Content-Type:+* +application/json+
+* *+Access-Mode:+*  +WRITE+
+
+[source, JSON, role="nocopy"]
+----
+{
+  "statements": [
+    {
+      "statement": "CREATE (n) RETURN n"
+    }
+  ]
+}
+----
+
+_Example response_
+
+* *+200:+* +OK+
+* *+Content-Type:+* +application/json;charset=utf-8+
+
+[source, JSON, role="nocopy"]
+----
+{
+  "results" : [ {
+    "columns" : [ "n" ],
+    "data" : [ {
+      "row" : [ { } ],
+      "meta" : [ {
+        "id" : 7,
+        "type" : "node",
+        "deleted" : false
+      } ]
+    } ]
+  } ],
+  "errors" : [ ]
+}
+----