Adding imports

Author: kemerava

docs/api/ref/Events.md

@@ -2,6 +2,9 @@
 title: Events
 ---
 
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+
 In addition to intent and context events, the FDC3 API and PrivateChannel API may be used to listen for other types of events via their `addEventListener()` functions.
 
 ## `ApiEvent`