Fix Rosalind tutorial ordering

- [ ] 10th tutorial is being listed as 1st tutorial currently
 - need to sort on the integer value of the tutorial or left pad with a zero.

<img width="724" height="612" alt="Image" src="https://github.com/user-attachments/assets/3ed0f3ee-1f93-43cf-b0e0-51f8103c5dd9" />