Update welcome-to-linux directory

[SorinAlexB]

Prerequisite Checklist

• Read the contribution guidelines regarding submitting new changes to the project;
• Tested your changes against relevant architectures and platforms;
• Updated relevant documentation (if needed).

Description of changes

Transitioned the 'welcome-to-linux' directory to meet the requirements of the OpenEdu Methodology.

[github-actions]

Published at http://open-education-hub.github.io/binary-security/5/

[github-actions]

Published at http://open-education-hub.github.io/binary-security/5/

[teodutu]

Things look OK overall. I made some small inline suggestions. besides those:

• Remove the "Challenge" and "Tutorial" prefixes from the names of each exercise.
• Fix the failing CI/CD tests (including deployment) [1]. To fix spellcheck, you'll have to add some words or acronyms to these lists [2]. Make another PR to that repo with the added words. Make sure to run sort -u -o <file_name> <file_name>.

PR rendering isn't working yet. I'll fix the published link.

[1] https://github.com/security-summer-school/essentials-security/pull/5/checks
[2] https://github.com/open-education-hub/actions/tree/main/spellcheck/config

[teodutu]

Fix the linter errors [1] [2] and reword your commit like so: welcome-to-linux: Rework session according to OpenEdu methodology then add a description of the changes to it. To fix [2], you'll have to make a PR with the missing words here [3]

[1] https://github.com/security-summer-school/essentials-security/actions/runs/9625815290/job/26551093380?pr=5
[2] https://github.com/security-summer-school/essentials-security/actions/runs/9625815290/job/26551093277?pr=5
[3] https://github.com/open-education-hub/actions

[github-actions]

Published at http://security-summer-school.github.io/essentials-security/5/

[teodutu]

You only need to split the reading material into subchapters and we can merge this. Everything else seems fine.

[github-actions]

Published at http://security-summer-school.github.io/essentials-security/5/

[teodutu]

❤️