[release-branch.go1] doc: update wiki article to use html/template properly.

««« CL 6116055 / d282c379aad7
doc: update wiki article to use html/template properly.

Fixes #3569.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6116055
»»»

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6119055
3 files changed