test: verify blank-line .INPUTS/.OUTPUTS description format in CI

Testing whether type + blank line + description paragraph passes
PlatyPS + markdownlint in the Build-Docs pipeline. This is the format
required by PR #69 discussion — descriptions are required, not optional.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: MariusStorhaug

src/functions/public/Get-PSModuleTest.ps1

@@ -15,8 +15,12 @@ function Get-PSModuleTest {
         .INPUTS
         None
 
+        You cannot pipe objects to this function.
+
         .OUTPUTS
         System.String
+
+        A greeting string for the given name.
     #>
     [OutputType([string])]
     [CmdletBinding()]