fix format

Author: Saurabhkmr98

docs/api-reference/epics/add-epic-work-items.md

@@ -119,10 +119,7 @@ const response = await fetch(
       "Content-Type": "application/json",
     },
     body: JSON.stringify({
-      work_item_ids: [
-        "550e8400-e29b-41d4-a716-446655440010",
-        "550e8400-e29b-41d4-a716-446655440011",
-      ],
+      work_item_ids: ["550e8400-e29b-41d4-a716-446655440010", "550e8400-e29b-41d4-a716-446655440011"],
     }),
   }
 );