Update Repos.csv with corrected GitHub ID and domain expert reviewer - Ziyang

This Merge Request includes the following updates to the Repos.csv file:

• Corrected my GitHub ID to use my username instead of a number.
• Updated the "Domain Expert Reviewer" field to "TBD" as per your feedback.
• Verified the formatting and alignment of my row against the first row for consistency.

Thank you for reviewing these changes!

merged

mentioned in commit 26e4ecc7

I've merged the PR, but I have one more request. Please list an extra for your project so that you can get full marks. We discussed extras at the beginning of the second lecture. An overview is also in the course outline.

Dear Dr. Smith, I have updated the Repos.csv file to include "User manual" as the extra content for my project, based on your feedback. I have submitted a new Merge Request for your review. Please let me know if any further adjustments are needed.Thank you for your guidance!

The change to user manual is fine, but there is now a merge conflict.