godoc: update out of sync static.go

Replace references to Share by GoogleCN.

Fixes golang/go#21725

Change-Id: I6db4aa282cca7c104cbe34b40d152aa53ce07280
Reviewed-on: https://go-review.googlesource.com/60851
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
1 file changed