How to setup public location?

[Alexander Belchenko]

David Strauss пишет:
> On 2010-01-29 12:03, Alexander Belchenko wrote:
>> Help on push said:
>>
>> Options:
>>   --stacked             Create a stacked branch that references the
>> public location of the parent branch.
>>
>>
>> What is public location here? Can you provide some example?
> 
> In this case, "public location" means a branch that can be read by all
> users who have branched from it. Generally, it is a project mainline
> available to the public as a read-only branch on the internet.

I'm not quite understand this. Can you show me a little example?