Add learnOS — a visual interface for this list

[sahilavatar]

Hi! I built learnOS, an open-source static UI that makes this list
more accessible — search, categories, and one-click links to every course.

Live demo: https://sahilavatar.github.io/learn-os
Repo: https://github.com/sahilavatar/learn-os

Non-commercial, fully credits this repo, MIT licensed.
Happy to adjust the wording if needed.

[Developer-Y]

Thanks for your effort, I like to keep this repo simple and stupid, therefore I would like to avoid extraneous links which are not of video lectures. I can keep this PR open for some time so your effort gets traction and more people find your work but I am not in favor of merging it.

[sahilavatar]

I understand— the "simple and stupid" philosophy is exactly what makes this repo so valuable and easy to maintain. Really appreciate you keeping it open for visibility, that's very generous. I'll keep building learnOS and will make sure it always credits this repo as the source. Thanks!