CORTX-33986 : Convert HLD for Data Integrity in .md format.

[rajatpatil98]

Problem Statement

• Convert existing Motr HLD in confluence https://seagate-systems.atlassian.net/wiki/spaces/PRIVATECOR/pages/1010663429/Motr+DI in .md format and add to cortx-motr repo in github.

Coding

Checklist for Author

• Coding conventions are followed and code is consistent

Testing

Checklist for Author

• Unit and System Tests are added
• Test Cases cover Happy Path, Non-Happy Path and Scalability
• Testing was performed with RPM

Impact Analysis

Checklist for Author/Reviewer/GateKeeper

• Interface change (if any) are documented
• Side effects on other features (deployment/upgrade)
• Dependencies on other component(s)

Review Checklist

Checklist for Author

• JIRA number/GitHub Issue added to PR
• PR is self reviewed
• Jira and state/status is updated and JIRA is updated with PR link
• Check if the description is clear and explained

Documentation

Checklist for Author

• Changes done to WIKI / Confluence page / Quick Start Guide

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View rendered doc/HLD-Data-Integrity.md

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[cla-bot]

Thanks for your contribution!
The CLA bot has flagged your contribution as not having a Contributor License Agreement
in place. Note that this is not needed in the overwhelming majority of instances and this warning will usually be ignored.
The code reviewers will make a determination and may ask you to sign a CLA or may choose to ignore this warning.
More information about this can be found here.

[cla-bot]

Thanks for your contribution!
The CLA bot has flagged your contribution as not having a Contributor License Agreement
in place. Note that this is not needed in the overwhelming majority of instances and this warning will usually be ignored.
The code reviewers will make a determination and may ask you to sign a CLA or may choose to ignore this warning.
More information about this can be found here.

[rkothiya]

Giving an exception for ci/cd regression and pre-merge job as it is documentation change.