added usage text

music-sync.sh

@@ -71,6 +71,18 @@ GetOptions() {
 
 }
 
+Usage() {
+	echo "Usage:"
+	echo "music-sync -s|--source <source> -d|--dest <destination> <parameters>"
+	echo ""
+	echo "Syncronises music from one folder to another."
+	echo ""
+	echo "Options:"
+	echo " -s, --source <source>     The source folder of the music"
+	echo " -d, --dest <destination>  The destionation folder of the music"
+	echo " -v, --verbose             Enable verbose output"
+	echo " -h, --help                Display this help text"
+}
 
 VerboseOutput() {
 	if [[ $verbose ]]; then
@@ -79,3 +91,6 @@ VerboseOutput() {
 }
 
 GetOptions $@
+if [[ $help ]]; then
+	Usage
+fi