Updated DataExtension API Builders (markdown)

DataExtension-API-Builders.md

@@ -75,6 +75,27 @@ public ExtensionDataBuilder lotsOfServerData() {
 
 </details>
 
+<details>
+<summary>Clean value building example</summary>
+
+```java
+@DataBuilderProvider
+public ExtensionDataBuilder lotsOfServerData() {
+    return newExtensionDataBuilder().addValue(Long.class, this::superheroCountValue);
+}
+
+private DataValue<Long> superheroCountValue() {
+    return valueBuilder("Superheroes")
+            .buildNumber(this::getSuperheroCount);
+}
+
+private long getSuperheroCount() {
+    return 0; // TODO implement later eh? :D
+}
+```
+
+</details>
+
 In addition to this value builder has a lot of other methods:
 ```
 builder.valueBuilder("Example")                                        // 50 char limit