Add some information to upstream's desktop file
--- a/canorus.desktop
+++ b/canorus.desktop
@@ -1,14 +1,16 @@
 [Desktop Entry]
-Encoding=UTF-8
+Version=1.0
 Name=Canorus
 GenericName=Music score editor
+GenericName[de]=Notensatzprogramm
 GenericName[sl]=Program za pisanje not
 Comment=A free next-generation cross-platform music score editor!
+Comment[de]=Ein freies, plattformübergreifendes Notensatzprogramm der nächsten Generation!
 Comment[sl]=Prost program za pisanje not naslednje generacije!
 Exec=canorus
-Icon=canorus
+Icon=/usr/share/canorus/images/clogosm.png
 Terminal=false
 Type=Application
-Categories=Application;AudioVideo;
+Categories=Music;Audio;AudioVideoEditing;Midi;Sequencer;AudioVideo;Qt
 StartupNotify=true
 MimeType=application/x-notes
