Add to changelog

Kaushik Ghose · web-flow · commit 2bfbd266406b · 2019-02-06T08:34:44.000-05:00
diff --git a/Workflow.yml b/Workflow.yml
@@ -48,6 +48,7 @@ $graph:
 
       ## Changelog
 
+        * Clarify intent of ExpressionTool and clarify that they can be run standalone. 
         * Clarify how Requirements are inherited by step processes.
         * Clarify behavior around step inputs not consumed by the target
           run process.
