Introduced new generalized JSON-format for `top10`

[demos/kafka/wordcount] / counter

diff --git a/counter b/counter
index f9156ed..123d1d3 160000 (submodule)
--- a/counter
+++ b/counter
@@ -1 +1 @@
-Subproject commit f9156ed2e1f43b64d39cc39a13d12ca8c0d24219
+Subproject commit 123d1d3df7e3665dbe511a2e7d7398e0aa235a63