Installation on Linux fails trying to make kernel directory

Line 143 references mkdir. mkdir is an application in linux, and a function on Windows.

PS /home/corbob/Jupyter-PowerShell> ./Install.ps1 -KernelFolder ~/.jupyter/kernel                                                                                        
         
/usr/bin/mkdir: invalid option -- 'P'
Try '/usr/bin/mkdir --help' for more information.

Should use New-Item instead of mkdir.

I believe the resolution will simply be to change line 143 to:

        $null = New-Item -Path (Split-Path $kernelFile) -Force -ItemType Directory