Added demo scripts
diff --git a/demo-scripts/Sprint-4/update.sh b/demo-scripts/Sprint-4/update.sh
new file mode 100755
index 0000000..30c9391
--- /dev/null
+++ b/demo-scripts/Sprint-4/update.sh
@@ -0,0 +1,4 @@
+#! /bin/sh
+CLUSTER=/home/masayosi/bin/hosts-3x3.txt
+
+dsh -g onos 'cd ONOS; git pull; ant'