Add example with namespaces and ignore param

README.rst

@@ -36,6 +36,10 @@ Simple use-case::
     # by default we connect to localhost:9200
     >>> es = Elasticsearch()
 
+    # create an index in elasticsearch, ignore status code 400 (index already exists)
+    >>> es.indices.create(index='my-index', ignore=400)
+    {u'acknowledged': True}
+
     # datetimes will be serialized
     >>> es.index(index="my-index", doc_type="test-type", id=42, body={"any": "data", "timestamp": datetime.now()})
     {u'_id': u'42', u'_index': u'my-index', u'_type': u'test-type', u'_version': 1, u'ok': True}