lua dissector: adjust usage instructions
...as originally described in the first commit that added the file.
Change-Id: I67918f0f62b1619786324ae84276a46d7c64eee5
diff --git a/contrib/simtrace.lua b/contrib/simtrace.lua
index fa477d5..fadc01a 100644
--- a/contrib/simtrace.lua
+++ b/contrib/simtrace.lua
@@ -2,7 +2,10 @@
-- (C) 2021 by sysmocom - s.f.m.c. GmbH, Author: Eric Wild
-- SPDX-License-Identifier: GPL-2.0+
--
--- Usage: Put this into your ~/.wireshark/init.lua [or include it from there]
+-- Usage: Move this file to your "personal lua plugins" folder that
+-- can be found in the Wireshark Help->About Wireshark->Folders tab
+-- Windows: %APPDATA%\Wireshark\plugins.
+-- Unix-like systems: ~/.local/lib/wireshark/plugins.
usb_simtrace_protocol = Proto("USB_simtrace", "USB simtrace protocol")