Install and configure in Installation Guide

$ export OS_AUTH_URL=http://controller:35357/v3
 Should change port from 35357 to 5000

This bug tracker is for errors with the documentation, use the following as a template and remove or add fields as you see fit. Convert [ ] into [x] to check boxes:

- [ ] This doc is inaccurate in this way: ______
- [ ] This is a doc addition request.
- [ ] I have a fix to the document that I can paste below including example: input and output.

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-----------------------------------
Release: 0.1 on 2019-08-23 19:39
SHA: f80f22b2537844fc48e4f78bfb9eb664ad1f1280
Source: http://git.openstack.org/cgit/openstack/openstack-manuals/tree/doc/install-guide/source/keystone-install.rst
URL: https://docs.openstack.org/newton/install-guide-ubuntu/keystone-install.html