Apply suggestion from code review

Author: rchinn1

src/connections/functions/insert-functions.md

@@ -106,7 +106,7 @@ To change which event type the handler listens to, you can rename it to the name
 
 Segment considers a function's execution successful if it finishes without error. You can also `throw` an error to create a failure on purpose. Use these errors to validate event data before processing it, to ensure the function works as expected.
 
-You can `throw` the following pre-defined error types to indicate that the function ran as expected, but that data was not deliverable:
+You can `throw` the following pre-defined error types to indicate that the function ran as expected, but the data was not deliverable:
 
 - `EventNotSupported`
 - `InvalidEventPayload`