* Every new feature should be documented. If it's a new module, don't

forget to add it to the API docs.

* Docstrings should be in `numpydoc format

<https://github.com/numpy/numpy/blob/master/doc/HOWTO_DOCUMENT.rst.txt>`_.

Don't be thrown off by the fact that many of the existing docstrings

are not in that format. We are working to standardize on

`numpydoc`.

* Each high-level plotting function should have a simple example in

the `Example` section. This should be as simple as possible to

demonstrate the method. More complex examples should go in the

`examples` tree.

* Build the docs and make sure all formatting warnings are addressed.

* See:ref:`documenting-matplotlib` for our documentation style guide.