try this instead so people can see which import you added

package main

import "github.com/codegangsta/martini"

//START OMIT
import "github.com/codegangsta/martini-contrib/render"

//END OMIT

//START OMIT
func main() {
        m := martini.Classic()
        m.Use(render.Renderer())

        m.Get("/", func(r render.Render) {
                r.HTML(200, "hello", "jeremy")
        })

        m.Run()
        //END OMIT
}