content/go116-module-changes: fix typo

Change-Id: Ic29b16ee8c9356209880bece5d29ed9824c8c931
Reviewed-on: https://go-review.googlesource.com/c/blog/+/294229
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Paul Jolly <paul@myitcv.org.uk>

content/go116-module-changes.article

@@ -128,7 +128,7 @@ That is, the default setting is:
 
     GOVCS=public:git|hg,private:all
 
-See the [Controlling version control tools with `GOVCS`](https://golang.org/ref/mod#vcs-govcs) for more details.
+See [Controlling version control tools with `GOVCS`](https://golang.org/ref/mod#vcs-govcs) for more details.
 
 ## What's next?