Update readme-windows.txt

Author: Interrupt

Diff for: readme/readme-windows.txt

@@ -18,4 +18,4 @@ Try this example music pack made of Chicajo MIDIs: https://drive.google.com/open
 
 # Mod support!
 You can point the game at Fan Mission folders or files via the command line:
-systemshock.exe /Path/To/My/Mission
+systemshock.exe /Path/To/My/Mission