Update openapi.yaml

Co-authored-by: Stefaan Lippens <[email protected]>

Author: m-mohr

openapi.yaml

@@ -327,7 +327,7 @@ info:
 
     In the following, "end node" (also known as "leaf node") defines a node that is not referenced by any other node in the same process graph. The "root process graph" is the outermost process graph, which is not part of any other process graph.
 
-    A "result node" is a node that defines the return value of the process graph and has the `result` flag set to `true`. Exactly one of the nodes in a map of processes MUST have the `result` flag set to `true`, all the other nodes can omit it as the default value is `false`. Each child process graph MUST specify its own result node. The root process graph MUST also specify a result node although not strictly needed in all use cases.
+    A "result node" is a node (often an end node, but that's not required) that defines the return value of the process graph and has the `result` flag set to `true`. Exactly one of the nodes in a map of processes MUST have the `result` flag set to `true`, all the other nodes can omit it as the default value is `false`. Each child process graph MUST specify its own result node. The root process graph MUST also specify a result node although not strictly needed in all use cases.
     
     Having a result node is important as multiple end nodes are possible and in many use cases it is important to identify a specific return value for the process graph that is passed to other processes. The result node is not necessarily an end node.