set log level to info in examples

add verbose flag to vm-cli example

update readme for vm-cli example

examples/observer/main.go

@@ -2,9 +2,10 @@ package main
 
 import (
 	"fmt"
-	"log"
 	"time"
 
+	log "github.com/sirupsen/logrus"
+
 	"github.com/onyx-and-iris/voicemeeter"
 )
 
@@ -54,6 +55,10 @@ func (o observer) OnUpdate(subject string) {
 	}
 }
 
+func init() {
+	log.SetLevel(log.InfoLevel)
+}
+
 // main connects to Voiceemeter, registers observer for updates
 // runs updates for 30 seconds and then deregisters observer.
 func main() {