Updates according to code review

Author: m-mohr

extensions/remote-udp/README.md

@@ -22,23 +22,25 @@ 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 return one of the following two options:
 
-1. A single process, compatible to the endpoint `GET /process_graphs/{process_graph_id}`.
+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
-2. A list of processes, compatible to the endpoint `GET /process_graphs`.
+2. 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
+\* Compatible means in this context that the requests and responses must comply to the openEO API specification with the following exceptions:
 
-Compatible means in this context that the requests and responses must comply to the openEO API specification with the following exceptions:
-
-- The `Authorization` header MUST NOT not be sent.
-- Lists of processes MUST NOT paginate and the full process description MUST be provided for each process (i.e., the recommendation to omit large properties such as `process_graph` doesn't apply).
+- User credentials / tokens that are obtained through the openEO API MUST NOT not be sent to URIs that are external to the openEO API.
+  The requirement to provide an `Authorization` header for the respective endpoints doesn't apply.
+- For a list of processes, the full process description MUST be provided for the process with the given ID within the first request.
+  This means that the recommendation to omit large roperties such as `process_graph` doesn't apply.
+  It also requires that the requester doesn't need to paginate through additional pages to find the process with the given ID.
+  Ideally, the list of processes is not paginated as otherwise the process with the given ID may move to other pages over time.
 
 ### Client Considerations
 
-Clients MUST only offer this functionality to users if the conformance class of this extension is listed in the `conformsTo` property of the `GET /` endpoint.
+If a client is conncected to a specific backend, the client MUST only offer this functionality to users if the conformance class of this extension is listed in the `conformsTo` property of the `GET /` endpoint.
 
 The protocol `http` is discouraged for URLs as web-based clients may not be able to retrieve HTTP URLs from a HTTPS context.
 For the same reason it is also RECOMMENDED to enable CORS for all URLs.
@@ -57,11 +59,11 @@ An exemplary process graph node:
 
 ```json
 {
-    "process_id": "echo",
-    "namespace": "https://hub.openeo.org/processes/echo",
-    "arguments": {
-    	"message": "Hello World"
-    },
-    "result": true
+  "process_id": "echo",
+  "namespace": "https://hub.openeo.org/processes/echo",
+  "arguments": {
+    "message": "Hello World"
+  },
+  "result": true
 }
 ```