Edits to index.rst

Edited rambling text, too many SDK refs.

Author: apruneda

docs/index.rst

@@ -1,5 +1,5 @@
-Welcome to the API reference for the Splunk SDK for Python, which describes the modules that are included in the Splunk SDK for Python.
-For more information about the SDK, see the `Splunk Developer Portal <http://dev.splunk.com/view/python-sdk/SP-CAAAEBB>`_.
+Welcome to the API reference for the Splunk SDK for Python, which describes the modules that are included in the SDK.
+For more information, see the `Splunk Developer Portal <http://dev.splunk.com/view/python-sdk/SP-CAAAEBB>`_.
 
 .. toctree::
    :maxdepth: 2