Add list of projects using xCDAT

[tomvothecoder]

Description

• Closes #466
• Closes #605

Checklist

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] My changes generate no new warnings
• [x] Any dependent changes have been merged and published in downstream modules

If applicable:

• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass with my changes (locally and CI/CD build)
• [ ] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [ ] I have noted that this is a breaking change for a major release (fix or feature that would cause existing functionality to not work as expected)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (38cdfd5) to head (6a8f51a).

:exclamation: Current head 6a8f51a differs from pull request most recent head b6e88ce. Consider uploading reports for the commit b6e88ce to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #617 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 15 15 Lines 1588 1588 ========================================= Hits 1588 1588 ```

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