Language Reference: Section on objects mixes up dodo bird example and pigeon example

[mmorearty]

This is probably a simple editing error due to some changes that took place as the documentation was being written.

Defining Objects gives an example with dodo birds:

dodo {
  name = "Dodo"
  taxonomy { 
    `class` = "Aves" 
  }
}

But then a subsequent paragraph mentions a different example (emphasis added by me):

Like all values, objects are immutable, which is just a fancy (and short!) way to say that their properties never change. So what happens when Pigeon moves to a different street? Do we have to construct a new object from scratch?

I think the emphasized sentence needs to be rewritten to refer to the dodo bird vs the tortoise in the following section.