fix example of use of the new workflow directive

oesteban · oesteban · commit 5e7fac9424e1 · 2017-03-21T12:39:01.000-07:00
diff --git a/nipype/sphinxext/plot_workflow.py b/nipype/sphinxext/plot_workflow.py
@@ -17,7 +17,7 @@
 The source code for the workflow may be included as **inline content** to
 the directive `workflow`::
 
-  .. workflow:
+  .. workflow ::
       :graph2use: flat
       :simple_form: no
 
@@ -28,7 +28,7 @@
 For example, the following graph has been generated inserting the previous
 code block in this documentation:
 
-.. workflow:
+.. workflow ::
   :graph2use: flat
   :simple_form: no
 
