Update extensions/remote-udp/README.md

extensions/remote-udp/README.md

@@ -22,10 +22,12 @@ This makes it possible for this extension to add additional allowed values to th
 
 This extension extends the `namespace` property of process graph nodes so that it accepts **absolute** URL with the protocols `https` (**recommended**) and `http` (discouraged). The URLs specified MUST either return
 
-1. a single process (compatible to the endpoint `GET /process_graphs/{process_graph_id}`)
-2. a list of processes (compatible to the endpoint `GET /process_graphs`)
-
-If a URL is provided for the `namespace` property, the `id` property of the process graph node MUST be set to the `id` of the process.
+1. a single process (compatible to the endpoint `GET /process_graphs/{process_graph_id}`).
+   In this case, the `id` property of the process graph node MUST be equal to the `id` of the process, 
+   otherwise a `ProcessNamespaceInvalid` error is thrown
+3. a list of processes (compatible to the endpoint `GET /process_graphs`)
+   In this case, the `id` property of the process graph node is used to identify the process from the list.
+   If not found a `ProcessNamespaceInvalid` error is thrown
 
 ### Compatibility