Readme states to use non module-path

[glatzert]

The Readme states about Get-OperationValidation to use c:\temp\Modules\AddNumbers this hides the fact, that the Path must be part of a module search path. That should at least be mentioned. Or consider allowing a "LiteralPath" instead of the "ModulePath"

[devblackops]

You're right @glatzert. I plan to improve the readme (and documentation in general) to make it clearer what the project's goal is, how to use it, etc.