Update "Automated Virtual Installation in StarlingX" documentation

[Raphael Lima]

Brief Description
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The documentation for "Automated Virtual Installation in StarlingX" is outdated, which leads to errors when trying to reproduce the steps.

Severity
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Minor

Steps to Reproduce
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In "Host Setup", the command mkdir followed by cp, described in item 6, copies the config folder as a subfolder to myconfig, which creates an incorrect path in relation to the script used in "Deployment Example".
Additionally, also in "Deployment Example", the file localhost.yml used in item 2 does not exist as it was substituted by simplex_localhost.yml and duplex_localhost.yml.

Expected Behavior
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The installation should be successful.

Actual Behavior
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The script returns an error and doesn't start the install process.

Reproducibility
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Reproducible (100%)

System Configuration
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N/A

Branch/Pull Time/Commit
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N/A

Last Pass
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N/A

Timestamp/Logs
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N/A

Test Activity
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Evaluation

Workaround
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After following the steps described in the documentation, it would be necessary to change the file path for the configurations used in the script as well as for the yml file.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/docs/+/895710
Committed: https://opendev.org/starlingx/docs/commit/82e74ccad48ddadd25fed1acbc294c11699f5198
Submitter: "Zuul (22348)"
Branch: master

commit 82e74ccad48ddadd25fed1acbc294c11699f5198
Author: raphael_l <email address hidden>
Date: Mon Sep 18 14:20:09 2023 -0300

    Updates "Automated Virtual Installation in StarlingX" documentation

    Changed "Host Setup" to remove the command mkdir, described in item 6, to avoid creating the config folder as a subfolder to myconfig. This created a different path in relation to the one used in the script for the "Deployment Example".
    Additionally, also in "Deployment Example", the file localhost.yml was changed to be prefixed by either simplex or duplex.

    Closes-Bug: 2036446

    Change-Id: Iceec865088fd0610e7c9c777e376666f69fe48d9