(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

[pauby]

A couple of comments, questions and changes.

[pauby]

Suggested change

	In the nuspec, the tag `notSilent` has been specified, indicating that the package is not silent. Normally this means that a window will be shown with a progressbar, or automated using Autohotkey.
	In the nuspec, the tag `notSilent` has been specified, indicating that the package is not silent, which means that there is some indication that an install, upgrade or uninstall is taking place such as a window bieng shown, a progress bar or something else that is visible.

[pauby]

I didn't add in the part about Autohotkey as I wasn't sure it was relevant?

[pauby]

Suggested change

	The tag `notSilent` should only be used to indicate that the package is not silent.
	The tag `notSilent` should only be used to indicate that the package is not silent, which means there is some indication that an install, upgrade or uninstall is taking place such as a window bieng shown, a progress bar or something else that is visible.

[pauby]

I just added the definition from above into this one so it's clear. Happy to have the definition changed, but I think we should have it in both places so we are clear and specific.