update shell

bin/vernemq.sh

@@ -121,7 +121,9 @@ siguser1_handler() {
 
 # SIGTERM-handler
 sigterm_handler() {
+    echo "Stopping VerneMQ Pod..."
     if [ $pid -ne 0 ]; then
+        echo "Leaving cluster..."
         # this will stop the VerneMQ process
         vmq-admin cluster leave node=VerneMQ@$IP_ADDRESS -k > /dev/null
         wait "$pid"