[release-branch.go1.7] doc/go1.7.html: fix name of tls.Config.NextProtos
[release-branch.go1.7] doc/go1.7.html: fix name of tls.Config.NextProtos

Updates #16737

Change-Id: Ia51fc9b06df43b7c6f7136e90b40362263c20081
Reviewed-on: https://go-review.googlesource.com/27126
Reviewed-by: Chris Broadfoot <0c2851a4f8ab4aa5606e69c0757771dd13dbe686@golang.org>
Reviewed-on: https://go-review.googlesource.com/27234

4ad/go,4ad/go,4ad/go,4ad/go,4ad/go,4ad/go,4ad/go,4ad/go