Go through package docstrings and markup code snippets as such
Noted by @karmel in #3422, sphinx supports syntax highlighting/code
quoting in code (ReST) docstrings using double colon + new line:

``` rst
For example::

            make_axis_dummies(panel, axis='major',
                              transform=lambda d: d.weekday())
```

sphinx 'autodoc' will pick these up and make code look nice.
