(docs) Update documentation for CPMR0067

[AdmiringWorm]

Description Of Changes

This updates the documentation that is stubbed out for the Chocolatey
Community Package Validator rule CPMR0067, by including information
about the rule.

Motivation and Context

To keep the rules we have documented.

Testing

• I have previewed these changes using the Docker Container or another method before submitting this pull request.

Change Types Made

• Minor documentation fix (typos etc.).
• Major documentation change (refactoring, reformatting or adding documentation to existing page).
• New documentation page added.
• The change I have made should have a video added, and I have raised an issue for this.
  • Issue #

Change Checklist

• Requires a change to menu structure (top or left-hand side)/
• Menu structure has been updated

Related Issue

N/A