Update MSI-extractor.ps1

Author: kernaltrap8

MSI-extractor.ps1

@@ -1,8 +1,9 @@
-# ==================================== #
-# Simple MSI Extractor // Source file  #
-# kernaltrap                           #
-# Version 1.3                          #
-# ==================================== #
+# ====================================== #
+# Simple MSI Extractor // Source file    #
+# kernaltrap                             #
+# Version 1.3                            #
+# This code is licensed under GNU GPL v3 #
+# ====================================== #
 
 Add-Type -AssemblyName System.Windows.Forms
 
@@ -45,4 +46,4 @@ if(Get-Process | Where-Object{$_.path -eq "C:\Windows\System32\msiexec.exe"}){
 } else {
   Write-Output ("Done! Go to the path you provided to see the contents.")
   $Shell.Popup("MSI extracted.", 0, "Thank you for using MSI Extractor", 0)
-}
+}