Added comments in class SimpleTokenizerV1

[rubix-coder]

To ease the understanding of each statement while referencing with the lecture video, comments are added.

[review-notebook-app]

Check out this pull request on 

See visual diffs & provide feedback on Jupyter Notebooks.

---

Powered by ReviewNB

[rasbt]

Thanks for taking the time to create this PR. The comments here in this cell look good, but I see that there are also changes in other places.

I prefer not to merge the other changes here.

Reply via ReviewNB

[rubix-coder]

Thank you for responding. I will be reviewing my changes and make sure the notebook is not disturbed much.
I would like to know if it is okay to update the torch and tiktoken version to latest (yr.2025) ?

[rasbt]

No problem.

I would like to know if it is okay to update the torch and tiktoken version to latest (yr.2025) ?

Sure, that's fine. But since your changes are only comments, I think it would be easiest to just apply the comments to the original notebook without rerunning the notebook.