[x/go.dev] use pullquote shortcode
[x/go.dev] use pullquote shortcode

Change-Id: I0d81316f9a76224f21375ebdc85c3b60768decd5

X-GoDev-Commit: 1fc19a772b21f6de0bcd78ef22ab1a021c6e2513

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