Update the readme

README.txt

@@ -1,23 +1,47 @@
  Minetest mod: boost_cart
-=======================
+==========================
 Based on (and fully compatible with) the mod "carts" by PilzAdam
-Target: Run smoothly and do not use too much CPU
+Target: Run smoothly as possible even on laggy server
 
-License of source code:
------------------------
-WTFPL
 
-License of media (textures, sounds and models):
------------------------------------------------
+ Features
+----------
+- A fast cart for your railway or roller coaster (up to 10 m/s!)
+- Boost and brake rails
+- By mesecons controlled Start-Stop rails
+- Detector rails that send a mesecons signal when the cart drives over them
+- Rail junction switching with the 'right-left' walking keys
+- Handbrake with the 'back' key
+
+
+ License for everything
+------------------------
 CC-0
 
-Authors of media files:
------------------------
-kddekadenz:
+
+ Authors
+---------
+Hawk777
+	carts_rail_ss.png
+	carts_rail_*_ss.png
+
+hexafraction
+	carts_rail_brk.png
+	carts_rail_*_brk.png
+	carts_rail_pwr.png
+	carts_rail_*_pwr.png
+
+kddekadenz
 	cart_bottom.png
 	cart_side.png
 	cart_top.png
 
-Zeg9:
+numberZero
+	carts_rail_dtc.png
+	carts_rail_dtc_on.png
+	carts_rail_*_dtc.png
+	carts_rail_*_dtc_on.png
+
+Zeg9
 	cart.x
 	cart.png