npm docs opens the docs; we want to generate them

src/pds/roundup/_nodejs.py

@@ -118,7 +118,7 @@ def execute(self):
 class _DocsStep(_NodeJSStep):
     '''A step that uses JSDoc (invoked by ``npm docs``) to generate documentation'''
     def execute(self):
-        invoke(['npm', 'docs'])
+        invoke(['npm', 'run', 'docs'])
 
 
 class _VersionBumpingStep(_NodeJSStep):