Guides in DevStack, multi same title in Guides

[huyang]

Hi,

When i read Devstack Guides, found there's multi same title in guides overview, such as:

All-In-One Single VM
All-In-One Single Machine
All-In-One Single LXC Container
Multi-Node Lab
Using DevStack with neutron Networking
Configure DevStack with KVM-based Nested Virtualization
Nova and DevStack
Configure Load-Balancer Version 2
Deploying DevStack with LDAP
All-In-One Single VM
All-In-One Single Machine
All-In-One Single LXC Container
Multi-Node Lab
Using DevStack with neutron Networking
Configure DevStack with KVM-based Nested Virtualization
Nova and DevStack
Configure Load-Balancer Version 2
Deploying DevStack with LDAP

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: on 2018-05-17 15:46
SHA: 7c66d9cde9711f701a67106736c91e56b606a803
Source: https://git.openstack.org/cgit/openstack-dev/devstack/tree/doc/source/guides.rst
URL: https://docs.openstack.org/devstack/latest/guides.html

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/569999

[OpenStack Infra (hudson-openstack)]

Change abandoned by Jens Harbott (frickler) (<email address hidden>) on branch: master
Review: https://review.opendev.org/569999

[Dr. Jens Harbott (j-harbott)]

Not sure how and when this got fixed, but the current page looks pretty reasonable to me.