[x/go.dev] layouts: fix “Learn more” link on homepage
[x/go.dev] layouts: fix “Learn more” link on homepage

Change-Id: I6412688364ddda7e2b7f9257c8dc2f2d59a574c6

X-GoDev-Commit: 4618e77b4f54fe05f4a51fee024f0e991919692b

golang/website,golang/website,golang/website,golang/website,golang/website,golang/website,golang/website