Updated APIv5 (markdown)

APIv5.md

@@ -73,6 +73,25 @@ class ClassWhereYouDoAllPlanThings {
 
 </details>
 
+## Listening for Plan reloads
+
+> This section is about API v0.0.4 which is set for release with 4.8.2
+
+`CapabilityService#registerEnableListener(Consumer<Boolean>)` can be used to be notified via a callback when Plan reloads.
+
+<details>
+<summary>Example usage</summary>
+
+```
+CapabilityService.getInstance().registerEnableListener(
+    isPlanEnabled -> {
+        if (isPlanEnabled) // Register DataExtension again
+    }
+)
+```
+
+</details> 
+
 ## DataExtension API
 
 - [Documentation for DataExtension API](https://github.com/plan-player-analytics/Plan/wiki/APIv5---DataExtension-API)