Added some docs for functions

[webtonize]

Description

This update adds docs generated by PlatyPS for the PowerShell functions in the module. The in-code docs have also been updated.

Related Issue

Missing docs, no formal issue filed

Motivation and Context

Better documented product

How Has This Been Tested?

Markdown preview in vscode and Github UI

Types of changes

• 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 change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.