Users are materialized as KTable

[demos/kafka/wordcount] / users

diff --git a/users b/users
index fc7b9df..0f2147d 160000 (submodule)
--- a/users
+++ b/users
@@ -1 +1 @@
-Subproject commit fc7b9dfe12a1401e7365d85ec723364750bdcd3d
+Subproject commit 0f2147d109ce238982953e2d07d9202e3070a67c