Adds an OCGV Demo (#202)

* Added demo (for use with github.com/StartAutomating/ShowDemo)

* Updated readme gif for ogcv

* fixed typo in demo

Author: tig

demo.ps1

@@ -0,0 +1,17 @@
+# .Silent cls
+# Out-ConsoleGridView (ocgv) from Microsoft.PowerShell.ConsoleGuiTools Demo - Press enter to move to next step in demo
+# Example 1: Output processes to a grid view
+Get-Process | Out-ConsoleGridView 
+# .Silent cls
+# Example 2: Display a formatted table in a grid view
+Get-Process | Select-Object -Property Name, WorkingSet, PeakWorkingSet | Sort-Object -Property WorkingSet -Descending | Out-ConsoleGridView
+# .Silent cls
+# Example 3: Define the function 'killp' to kill a process
+function killp { Get-Process | Out-ConsoleGridView -OutputMode Single -Filter $args[0] | Stop-Process -Id {$_.Id} }
+killp 
+# .Silent cls
+# Example 3b: 'killp note' fitlers for "note" (e.g. notepad.exe)
+killp note
+# .Silent cls
+# Example 4: Navigate PowerShell command history (Map this to F7 with https://github.com/gui-cs/F7History)
+Get-History | Sort-Object -Descending -Property Id -Unique | Select-Object CommandLine -ExpandProperty CommandLine | Out-ConsoleGridView -OutputMode Single -Filter $line -Title "Command Line History"