content: add download link to Go 1.7 post

Change-Id: Ic1d23176f9c0bb205bc51da3c8a94a738e185ddb
Reviewed-on: https://go-review.googlesource.com/27074
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/content/go1.7.article b/content/go1.7.article
index 102eeac..a7fca1e 100644
--- a/content/go1.7.article
+++ b/content/go1.7.article
@@ -7,6 +7,7 @@
 * Introduction
 
 Today we are happy to announce the release of Go 1.7.
+You can get it from the [[https://golang.org/dl/][download page]].
 There are several significant changes in this release: a port for
 [[https://en.wikipedia.org/wiki/IBM_System_z][Linux on IBM z Systems]] (s390x),
 compiler improvements, the addition of the [[https://golang.org/pkg/context/][context]] package,