fix: typo in PrivilegedNil rule description

[aslafy-z]

Description

Fix typo in PrivilegedNil rule description

Type of change

• Bug fix 🐛
• New feature ✨
• This change requires a documentation update 📖
• Breaking changes ⚠️

How Has This Been Tested?

N/A

Checklist:

• I have 🎩 my changes (A 🎩 specifically includes pulling down changes, setting them up, and manually testing the changed features and potential side effects to make sure nothing is broken)
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• The test coverage did not decrease
• I have signed the appropriate Contributor License Agreement

[ghost]

Thanks for opening this pull request! Please check out our contributing guidelines and sign the CLA.

[genevieveluyt]

Thank you for your contribution!

[ghost]

Congrats on merging your first pull request, keep em coming!