Make helpers examples runnable

docs/sphinx/helpers.rst

@@ -5,6 +5,15 @@ Helpers
 
 Collection of simple helper functions that abstract some specifics of the raw API.
 
+Connecting
+----------
+
+.. code-block:: python
+
+    from elasticsearch import Elasticsearch
+
+    client = Elasticsearch(cloud_id="YOUR_CLOUD_ID", api_key="YOUR_API_KEY")
+
 
 Bulk helpers
 ------------