Add note that recursive subworkflows is not allowed.

Peter Amstutz · Peter Amstutz · commit 05c11fa07b64 · 2017-07-20T08:21:51.000-04:00
diff --git a/v1.0/Workflow.yml b/v1.0/Workflow.yml
@@ -372,6 +372,9 @@ $graph:
     [SubworkflowFeatureRequirement](#SubworkflowFeatureRequirement) must be
     specified in the workflow or workflow step requirements.
 
+    It is a fatal error if a workflow directly or indirectly invokes itself as
+    a subworkflow (recursive workflows are not allowed).
+
   fields:
     - name: id
       type: string
diff --git a/v1.1.0-dev1/Workflow.yml b/v1.1.0-dev1/Workflow.yml
@@ -378,6 +378,9 @@ $graph:
     [SubworkflowFeatureRequirement](#SubworkflowFeatureRequirement) must be
     specified in the workflow or workflow step requirements.
 
+    It is a fatal error if a workflow directly or indirectly invokes itself as
+    a subworkflow (recursive workflows are not allowed).
+
   fields:
     - name: id
       type: string
