number: match input example to be Dutch as in the output

Change-Id: I5d1eaf79aa267121ce08dc3990b86ff30c8e0505
GitHub-Last-Rev: 0421867699811a7e6569e1d1d38943118d5c282d
GitHub-Pull-Request: golang/text#21
Reviewed-on: https://go-review.googlesource.com/c/text/+/297589
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Go Bot <gobot@golang.org>
diff --git a/number/doc.go b/number/doc.go
index 2ad8d43..925383a 100644
--- a/number/doc.go
+++ b/number/doc.go
@@ -19,7 +19,7 @@
 //
 //    p := message.NewPrinter(language.Dutch)
 //
-//    p.Printf("There are %v bikes per household.", number.Decimal(1.2))
+//    p.Printf("Er zijn %v fietsen per huishouden.", number.Decimal(1.2))
 //    // Prints: Er zijn 1,2 fietsen per huishouden.
 //
 //