Addfreecourse

[jamesmarcooo]

Added some free courses I found @vinzvinci :)

Related Issue

• Info about the related issue

Closes: #[issue number that will be closed through this PR]

Describe the changes you've made

Give a clear description what modifications you have made

Type of change

What sort of change have you made:

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Code style update (formatting, local variables)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Describe how have you verified the changes made

Checklist:

• [x] My code follows the guidelines of this project.
• [x] I have performed a self-review of my own code.
• [ ] I have commented my code, particularly whereever it was hard to understand.
• [ ] I have made corresponding changes to the documentation.
• [ ] My changes generate no new warnings.
• [ ] I have added tests that prove my fix is effective or that my feature works.
• [ ] Any dependent changes have been merged and published in downstream modules.

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