Add link to @mjumbewu's CSV package

docs/api-guide/renderers.md

@@ -280,6 +280,9 @@ The following third party packages are also available.
 ## MessagePack
 
 [MessagePack][messagepack] is a fast, efficient binary serialization format.  [Juan Riaza][juanriaza] maintains the `djangorestframework-msgpack` package which provides MessagePack renderer and parser support for REST framework.  Documentation is [available here][djangorestframework-msgpack].
+## CSV
+
+Comma-separated values are a plain-text tabular data format, that can be easily imported into spreadsheet applications.  [Mjumbe Poe][mjumbewu] maintains the [djangorestframework-csv][djangorestframework-csv] package which provides CSV renderer support for REST framework.
 
 [cite]: https://docs.djangoproject.com/en/dev/ref/template-response/#the-rendering-process
 [conneg]: content-negotiation.md
@@ -292,4 +295,5 @@ The following third party packages are also available.
 [django-error-views]: https://docs.djangoproject.com/en/dev/topics/http/views/#customizing-error-views
 [messagepack]: https://github.com/juanriaza/django-rest-framework-msgpack
 [juanriaza]: https://github.com/juanriaza
-[djangorestframework-msgpack]: https://github.com/juanriaza/django-rest-framework-msgpack
+[djangorestframework-msgpack]: https://github.com/juanriaza/django-rest-framework-msgpack[mjumbewu]: https://github.com/mjumbewu
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+[djangorestframework-csv]: https://github.com/mjumbewu/django-rest-framework-csv
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