Updated qual assurance ep. Closes #82, #92, #115. Add new screenshots

[josenino95]

If this pull request addresses an open issue on the repository, please add 'Closes #NN' below, where NN is the issue number. Closes #82, #92, #115

Please briefly summarise the changes made in the pull request, and the reason(s) for making these changes. This PR closes 3 issues and updates the text and screenshots of the quality assurance episode

If any relevant discussions have taken place elsewhere, please provide links to these.

For more guidance on how to contribute changes to a Carpentries project, please review [the Contributing Guide](CONTRIBUTING.md) and [Code of Conduct](https://docs.carpentries.org/topic_folders/policies/code-of-conduct.html). Please keep in mind that lesson Maintainers are volunteers and it may be some time before they can respond to your contribution. Although not all contributions can be incorporated into the lesson materials, we appreciate your time and effort to improve the curriculum. If you have any questions about the lesson maintenance process or would like to volunteer your time as a contribution reviewer, please contact The Carpentries Team at team@carpentries.org.

[github-actions[bot]]

:ok: Pre-flight checks passed :smiley:

This pull request has been checked and contains no modified workflow files, spoofing, or invalid commits.

Results of any additional workflows will appear here when they are done.