Install and configure controller node in Neutron

[Naoshi SAKAMOTO]

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.
- [x] I have a fix to the document that I can paste below including example: input and output.

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-----------------------------------
Release: 20.2.1.dev76 on 2019-08-21 16:09:09
SHA: 26187a3d4148eea03e2d8df298cadd47587f5f42
Source: https://opendev.org/openstack/neutron/src/doc/source/install/controller-install-ubuntu.rst
URL: https://docs.openstack.org/neutron/yoga/install/controller-install-ubuntu.html

The section "Configure the Compute service to use the Networking service"
instructs to edit the /etc/nova/nova.conf in the [neutron] section:
project_domain_name = default
user_domain_name = default

But they should be the followings:
project_domain_name = Default
user_domain_name = Default

[Brian Haley (brian-haley)]

Could be that the case doesn't matter, but it's inconsistent and other projects have changed to use Default so should fix.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/neutron/+/864921

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/neutron/+/864921
Committed: https://opendev.org/openstack/neutron/commit/a2090e4cbc4ad8e86c0346a2a6be1a3778a1a06f
Submitter: "Zuul (22348)"
Branch: master

commit a2090e4cbc4ad8e86c0346a2a6be1a3778a1a06f
Author: Brian Haley <email address hidden>
Date: Thu Nov 17 11:42:14 2022 -0500

    Doc: Capitalize keystone domain names

    There is an inconsistency for keystone domain names
    in the docs, 'default' and 'Default'. Should always
    use the latter, 'Default'.

    Change-Id: I4487de4e121362a02f839546721f007781f84057
    Closes-bug: #1996889

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 22.0.0.0rc1 release candidate.