Description of problem:

on horizon there it's very clear but looking at the cli, since there is no create command I was unable to figure it out until I asked people who have been working with swift for a while.

If you look at the help files than post will show this:
post Updates meta information for the account, container,
                         or object

There is no indication that you can create a new empty container using this command, only change existing ones - so unless I asked i would have never guessed to use it.

Version-Release number of selected component (if applicable):

openstack-swift-1.8.0-6.el6ost.noarch

How reproducible:

100%

Steps to Reproduce:
1. run swift --help 
2. 
3.

Actual results:

its unclear how we can create a new container from cli

Expected results:

there should be a create command from containers or the help files should be clearer 

Additional info: