Update readme.txt

readme.txt

@@ -2,11 +2,12 @@
 ## ADVTRAINS ## realistic trains in Minetest!
 by orwell96 and contributors(see below)
 
-For up-to-date information, visit https://forum.minetest.net/viewtopic.php?f=9&t=14726
+For up-to-date information, visit https://forum.minetest.net/viewtopic.php?f=9&t=14726
 
 
-Manual:
-If manual.pdf is not present (which is the case when you downloaded the zip file), see https://github.com/orwell96/advtrains/blob/master/manual.pdf
+Manual:
+See manual.pdf (might not be up to date)
+For information on LuaATC see the file inside the advtrains_luaautomation mod directory.
 
 License of code: LGPL 2.1
 License of media: CC-BY-SA 3.0
@@ -16,10 +17,13 @@ Contributions:
 Gravel Texture              : from Minetest Game
 Initial rail model/texture  : DS-minetest
 Models for signals/bumpers  : mbb
-Steam engine / wagon texture: mbb
-Detailed Steam engine       : mbb / Krokoschlange(animation)
-Industrial engine/wagons    : mbb
-Inventory images            : mbb
-Small code contributions    : NaruTrey / gpcf
-Mod Description             : hajo
-If I forgot someone please punish me for that.
+Steam engine / wagon texture: mbb
+Detailed Steam engine       : mbb / Krokoschlange(animation)
+Industrial engine/wagons    : mbb
+Inventory images            : mbb
+Small code contributions    : NaruTrey
+Major code contributions    : gpcf
+Mod Description             : hajo
+If I forgot someone please punish me for that.
+
+You can see this mod in action on Linuxworks Next Generation server.