demo flow definiton (before and after scaleout)
diff --git a/web/flowdef_demo_add.txt b/web/flowdef_demo_add.txt
new file mode 100644
index 0000000..7ef2fbb
--- /dev/null
+++ b/web/flowdef_demo_add.txt
@@ -0,0 +1,61 @@
+# Demo flow scale down
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