fixed comment

added path param documentation to display splash window.

Engine/source/console/consoleFunctions.cpp

@@ -2062,6 +2062,7 @@ DefineEngineFunction( gotoWebPage, void, ( const char* address ),,
 DefineEngineFunction( displaySplashWindow, bool, (const char* path), ("art/gui/splash.bmp"),
    "Display a startup splash window suitable for showing while the engine still starts up.\n\n"
    "@note This is currently only implemented on Windows.\n\n"
+   "@param path	relative path to splash screen image to display.\n"
    "@return True if the splash window could be successfully initialized.\n\n"
    "@ingroup Platform" )
 {