add UTF-8 encoding to example config

package/mpd/files/mpd.conf

@@ -6,6 +6,8 @@ state_file			"/etc/mpd/state"
 db_file				"/etc/mpd/database"
 pid_file			"/var/run/mpd/mpd.pid"
 log_file			"syslog"
+filesystem_charset		"UTF-8"
+id3v1_encoding			"UTF-8"
 # An example of an ALSA output
 audio_output {
 	type			"alsa"