Revise README (#253)

Add Python and Splunk versions tested for compatibility
https://jira.splunk.com/browse/DVPL-7485

Author: PKing70

README.md

@@ -38,14 +38,14 @@ Here's what you need to get going with the Splunk SDK for Python.
 
 #### Python
 
-The Splunk SDK for Python requires Python 2.7+, including Python 3. 
+The Splunk SDK for Python requires Python 2.7+, including Python 3. The Splunk SDK for Python has been tested with Python v2.7 and v3.5. 
 
 #### Splunk
 
 If you haven't already installed Splunk, download it 
 [here](http://www.splunk.com/download). For more about installing and running 
 Splunk and system requirements, see 
-[Installing & Running Splunk](http://dev.splunk.com/view/SP-CAAADRV). 
+[Installing & Running Splunk](http://dev.splunk.com/view/SP-CAAADRV). The Splunk SDK for Python has been tested with Splunk Enterprise 7.0 and 7.2.
 
 #### Splunk SDK for Python
 Get the Splunk SDK for Python; [download the SDK as a ZIP](http://dev.splunk.com/view/SP-CAAAEBB)