Changed to note.

Author: bkandel-picwell

doc/source/groupby.rst

@@ -488,9 +488,11 @@ must be either implemented on GroupBy or available via :ref:`dispatching
 
    grouped.agg({'C' : 'sum', 'D' : 'std'})
 
-Note that if you pass a dict to ``aggregate``, the ordering of the output colums is
-non-deterministic. If you want to be sure the output columns will be in a specific
-order, you can use an ``OrderedDict``.  Compare the output of the following two commands:
+.. note::
+
+    If you pass a dict to ``aggregate``, the ordering of the output colums is
+    non-deterministic. If you want to be sure the output columns will be in a specific
+    order, you can use an ``OrderedDict``.  Compare the output of the following two commands:
 
 .. ipython:: python