Not able to add input box and text using JADE template

I am trying to add input checkbox with object.text - using jade template. But I not able to add that. I am getting simply the text instead input element. how to solve this:

doctype 5
html(lang="en", ng-app)
    head
        title hellow there
        link(rel='stylesheet', href='styles/style.css')
    body
        h1 Jade - node template engine
        #container(ng-controller="todoController")
            span {{rest}}
            ul
                li(ng-repeat='todo in todos') input(type='checkbox') {{todo.text}}


script(src='js/lib/angular/angular.js')
script(src='js/lib/underscore/underscore-min.js')
script(src='js/app.js')

the output i am getting is:

input(type='checkbox') Good Morning //no input box displays
input(type='checkbox') Good after Noon //no input box displays

any one find me the wrong what i do here please?