[x/tour] go-tour: escape ">" to "&gt;".
[x/tour] go-tour: escape ">" to "&gt;".

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6490109
X-Tour-Commit: c59f5b1878f0381872487acfe4508aa7e02ad70e

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