Merge pull request #5576 from segmentio/tanjinhong72-patch-3

Add info to return event in handler to sent through destination

Author: cmastr

src/connections/functions/insert-functions.md

@@ -57,7 +57,7 @@ Segment invokes a separate part of the function (called a "handler") for each ev
 > info ""
 > If you’ve configured a [destination filter](/docs/connections/destinations/destination-filters/), and the event doesn’t pass the filter, then your function isn’t invoked for that event as destination filters are applied before insert functions.
 
-The default source code template includes handlers for all event types. You don't need to implement all of them - just use the ones you need, and skip the ones you don't.
+The default source code template includes handlers for all event types. You don't need to implement all of them - just use the ones you need, and skip the ones you don't. For event types that you want to send through the destination, return the event in the respective event handlers.
 
 > info ""
 > Removing the handler for a specific event type results in blocking the events of that type from arriving at their destination. To keep an event type as is but still send it downstream, add a `return event` inside the event type handler statement.