spelling error

[momo]

https://docs.openstack.org/arch-design/use-cases/use-case-general-compute.html
A good example of such a model is the leaf-spline model
Change it to:
A good example of such a model is the leaf-spine model

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:

- [X] 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: 15.0.0 on 2017-03-29 10:42
SHA: 20fe21bd6be5819b45f9b6a2622c8a0008a35629
Source: https://git.openstack.org/cgit/openstack/openstack-manuals/tree/doc/arch-design/source/use-cases/use-case-general-compute.rst
URL: https://docs.openstack.org/arch-design/use-cases/use-case-general-compute.html

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/451349

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/451349
Committed: https://git.openstack.org/cgit/openstack/openstack-manuals/commit/?id=dde24df55fca006dfb78ac94847ceeea49555950
Submitter: Jenkins
Branch: master

commit dde24df55fca006dfb78ac94847ceeea49555950
Author: chenxing <[e-mail]>
Date: Wed Mar 29 11:41:57 2017 +0000

    [arch-design] Fix the typo

    Change-Id: I1d14614b38bc0eb89e1d6a887c298a106fe6d07f
    Closes-Bug: #1677209