Added spinx docs

Author: aydrian

docs/api/recipient_lists.rst

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+.. module:: sparkpost.recipient_lists
+
+:mod:`sparkpost.recipient_lists`
+=============================
+
+.. autoclass:: RecipientLists
+   :members:

docs/resources/recipient_lists.rst

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+Recipient Lists
+=============
+
+Let's use the underlying `recipient_lists API`_ to create a recipient list:
+
+.. code-block:: python
+
+    from sparkpost import SparkPost
+
+    sp = SparkPost()
+
+    response = sp.recipient_lists.create(
+        id='UNIQUE_TEST_ID',
+        name='Test Recipient list',
+        recipients=[
+            {
+                'address': {
+                    'email': 'test1@test.com'
+                }
+            },
+            {
+                'address': {
+                    'email': 'test2@test.com'
+                }
+            },
+            {
+                'address': {
+                    'email': 'test3@test.com'
+                }
+            }
+        ]
+    )
+
+    print response
+    # outputs {u'total_accepted_recipients': 3, u'id': u'UNIQUE_TEST_ID', u'total_rejected_recipients': 0, u'name':'Test Recipient list'}
+
+.. _recipient_lists API: https://www.sparkpost.com/api#/reference/recipient-lists
+
+
+Retrieve a recipient list
+-----------------------
+
+.. code-block:: python
+
+    from sparkpost import SparkPost
+
+    sp = SparkPost()
+
+    sp.recipient_lists.get('my-list-id')
+
+
+List all recipient lists
+----------------------
+
+.. code-block:: python
+
+    from sparkpost import SparkPost
+
+    sp = SparkPost()
+
+    sp.recipient_lists.list()
+
+
+API reference
+-------------
+
+:doc:`/api/recipient_lists`
+
+
+Further examples
+----------------
+
+See the `python-sparkpost recipient_lists examples`_.
+
+.. _python-sparkpost recipient_lists examples: https://github.com/SparkPost/python-sparkpost/tree/master/examples/recipient_lists
+
+
+Additional documentation
+------------------------
+
+See the `SparkPost Recipient List API Reference`_.
+
+.. _SparkPost Recipient Lists API Reference: https://www.sparkpost.com/api#/reference/recipient_lists