Fix links in docs to throwonfielderror

Reviewed By: monicatang

Differential Revision: D63762273

fbshipit-source-id: 69ee1b792c112754893f4a56c3ba1f27c08579f8

website/versioned_docs/version-v18.0.0/guides/catch-directive.md

@@ -160,7 +160,7 @@ other fields that are not under a `@catch` will still not throw - because
 `@throwOnFieldError` would be missing.
 
 Read more about `@throwOnFieldError`
-[here](https://relay.dev/docs/next/api-reference/graphql-and-directives/#throwonfielderror-experimental).
+[here](https://relay.dev/docs/next/api-reference/graphql-and-directives/#throwonfielderror).
 
 ## `@catch` arguments