Fix typo

[solmsted]

High Level Overview of Change

This is a small correction to fix a spelling/grammar mistake in documentation.

Context of Change

I'm not really aware of the history or context of the mistake. It feels like a typo that was overlooked.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (non-breaking change that only restructures code)
• Tests (You added tests for code that already exists, or your new feature included in this PR)
• [x ] Documentation Updates
• Release