Update prompts.py

[L0uisPham]

Description

• Add closing parenthesis to Step 1 Entity Formatting (line 15)

Related Issues

N/A

Proposed Changes

• Add the missing parenthesis

Checklist

• [x] I have tested these changes locally.
• [x] I have reviewed the code changes.
• [x] I have updated the documentation (if necessary).
• [x] I have added appropriate unit tests (if applicable).

Additional Notes

[Add any additional notes or context that may be helpful for the reviewer(s).]