readme and docs: german and english game versions supported, what happens with other versions

docs/manual/02-installing.md

@@ -1,7 +1,7 @@
 # Installing LlamaMod and the first start
 
 LlamaMod runs on **Windows** and **Linux**. It needs your own copy of the game – the CD or an ISO
-image of it. The game itself does not have to be installed: LlamaMod copies what it needs into
+image of it, German or English version. The game itself does not have to be installed: LlamaMod copies what it needs into
 its own data folder and never changes the original.
 
 ## Download and start