Dan Tsekhanskiy

Add module dependency support

4

### Description As part of getting started with Catesta, I had to dig through the code base to find where to import the module dependencies for my PowerShell module. I...

### Description This is more of a nit FR, but it would be performant to leverage the platyPS `Update-MarkdownHelp` function over the `New-MarkdownHelp` function when generating documentation. Update-MarkdownHelp doc: https://github.com/PowerShell/platyPS/blob/master/docs/Update-MarkdownHelp.md...