Correctly bind the count variable in template-bind

If the value was not bound correctly then the count would not show as
the value would be null. Instead it has been initialized to 0, from the
value in the model object.
Containers provide a count to distinguish them

Also demonstrates that the value can be passed down.

Don't really have a clean way of doing this for the Bind Template,
possibly needs a @published value which gets set on the model or
something.