feat: Add "Act as a US Accounting Specialist" prompt

[HorselessName]

This pull request introduces a new prompt, Act as a US Accounting Specialist.

This prompt is designed to make the AI embody the persona of an experienced Certified Public Accountant (CPA) from the United States, providing detailed, compliant, and authoritative answers based on US GAAP and IRS regulations.

Add New Prompt

You'll need to add your prompt into README.md, and to the prompts.csv file. If
your prompt includes quotes, you will need to double-quote them to escape in CSV
file.

If the prompt is generated by AI, please add <mark>Generated by AI</mark> to
the end of the contribution line.

• I've confirmed the prompt works well
• I've added
  Contributed by: [@HorselessName](https://github.com/HorselessName)
• I've added to the README.md
• I've added to the prompts.csv
  • Escaped quotes by double-quoting them
  • No spaces after commas after double quotes. e.g. "Hello","hi", not
    "Hello", "hi"
  • Removed "Act as" from the title on CSV

Please make sure you've completed all the checklist.

[f]

can you replace TRUE to FALSE since it's not a developer prompt.