diff --git a/README.md b/README.md
index ebc1c9a..1ac987f 100644
--- a/README.md
+++ b/README.md
@@ -4,4 +4,8 @@
 
 Allows query-based consumption of MessengerApi. Communication between two parties then seems like request/response approach.
 
-![example](https://gitea.masita.net/mc/messengerapi.QueryClient/raw/commit/6bf3f1be3a8d81882c41eb9132fba5654ae05a68/assets/example.jpg)
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+![example](https://gitea.masita.net/mc/messengerapi.QueryClient/raw/commit/6bf3f1be3a8d81882c41eb9132fba5654ae05a68/assets/example.jpg)
+
+Behind the scenes, query answer is identified by special guid-part postfix added to message payload-type:
+
+![example](https://gitea.masita.net/mc/messengerapi.QueryClient/raw/branch/main/assets/example2.jpg)
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