Updated some sounds, added some new ones for phone calls and updated the README to tell about the OmegaGMGS2 soundfont

README.md

@@ -25,6 +25,8 @@ I maintain an AUR package called `harmony2`. Get it from [here](https://aur.arch
 
 ## Exporting
 
+**Note**: in order to use most of these sounds in the LMMS project, you need the OmegaGMGS2 soundfont by Rick Simon (look it up online and you'll quickly find it) and place it in your LMMS working directory under `samples/soundfonts`.
+
 To export all the sounds from LMMS:
 
 0. Make sure the various tracks (each corresponding to one sound) you want to export are enabled (their green light on the left must be on);