Work on remote

README.md

@@ -414,7 +414,20 @@ See: https://gitlab.liu.se/lrs2/lrs_doc/-/blob/main/signal.md
 
 ## 1.8 Communication
 
+To execute a TST node on another agent we must communicate between two
+agents. There are currently two possible ways to do that:
+
+- Using an MQTT broker.  To use that set the environment variable
+  TST_REMOTE_TRANSPORT to mqtt.
+- Using ZENOH.  To use that set the environment variable
+  TST_REMOTE_TRANSPORT to zenoh. And allow the folloing topics between agents:
+```bash
+   publishers: [".*/exec_command", ".*/exec_feedback", ".*/exec_response"],
+   subscribers: [".*/exec_command", ".*/exec_feedback", ".*/exec_response"],
+```
+<!--
 See: https://gitlab.liu.se/lrs2/lrs_doc/-/blob/main/communication.md
+-->
 
 # 2. Test Examples