x/website: https://golang.org/project/ missing Go 1.12

[davecheney]

https://golang.org/project/ is missing a link for Go 1.12.

/cc @andybons @dmitshur

[dmitshur]

This has been fixed on master and backported to release-branch.go1.12 branch via CL 163727.

It can be seen at https://tip.golang.org/project/. The golang.org website needs to be redeployed.

[dmitshur]

The website is redeployed and this issue is resolved. Thanks for reporting it.