wq.db.contrib.chart is deprecated per #17

(skip ci)

Author: sheppard

README.md

@@ -7,7 +7,7 @@ Django REST Pandas
 
 The design philosophy of DRP enforces a strict separation between data and presentation.  This keeps the implementation simple, but also has the nice side effect of making it trivial to provide the source data for your visualizations.  This capability can often be leveraged by sending users to the same URL that your visualization code uses internally to load the data.
 
-DRP does not include any JavaScript code, leaving the implementation of interactive visualizations as an exercise for the implementer.  That said, DRP is commonly used in conjunction with the [wq.app] library, which provides [wq/chart.js] and [wq/pandas.js], a collection of chart functions and data loaders that work well with CSV served by DRP and [wq.db]'s [chart] module.
+DRP does not include any JavaScript code, leaving the implementation of interactive visualizations as an exercise for the implementer.  That said, DRP is commonly used in conjunction with the [wq.app] library, which provides [wq/chart.js] and [wq/pandas.js], a collection of chart functions and data loaders that work well with CSV served by DRP.
 
 [![Latest PyPI Release](https://img.shields.io/pypi/v/rest-pandas.svg)](https://pypi.python.org/pypi/rest-pandas)
 [![Release Notes](https://img.shields.io/github/release/wq/django-rest-pandas.svg