Typo: "duchess" is spelled without a "t"

[cunnie]

Background MANDATORY Describe WHY this change is being made, be clear, use proper English and don't write lines longer than 80 chars.

One of the words is mis-spelled—"duchess" should not have the letter "t".

Changes MANDATORY

• List your major changes one by one

"duchess" is now spelled properly.

Checklist

• [ ] Tests added
• [ ] Documentation updated to include changes (if needed)
• [ ] Gofmt run on your code