Use HTML 5 doctype so we don't need to close <meta>
Use HTML 5 doctype so we don't need to close <meta>

However, just close them anyway because the build is failing on
unclosed meta tags.

ketan/gocd.github.io,gocd/gocd.github.io,gocd/gocd.github.io,gocd/www.go.cd,gocd/www.go.cd,ketan/www.go.cd,GaneshSPatil/www.go.cd,gocd/www.go.cd,ketan/www.go.cd,gocd/gocd.github.io,ketan/gocd.github.io,GaneshSPatil/www.go.cd,ketan/www.go.cd,gocd/www.go.cd,gocd/gocd.github.io,GaneshSPatil/www.go.cd,ketan/gocd.github.io,GaneshSPatil/www.go.cd