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

docs/reference/game-files.md

@@ -20,8 +20,9 @@ Registry key (all values): `HKEY_LOCAL_MACHINE\Software\Disney Interactive\Emper
 with `CDPath`, `HDPath`, screen size, volumes and devices. LlamaMod's base patch of `groove.exe`
 redirects it to `HKEY_CURRENT_USER`, so no admin rights are needed.
 
-Development used the **German CD**. Other language versions are expected to use the same formats
-but were not tested with their own data.
+Development used the **German CD**. The English first release is supported as well: all exe
+patches find their places in both builds (table below). Its own CD data has not been tested yet –
+the formats are expected to be the same.
 
 ### groove.exe versions