README updates

Added Splunk Enterprise versions compatible with the SDK.
Added python version 3.7 in the Test Suite README

Author: ashah-splunk

README.md

@@ -28,7 +28,9 @@ Here's what you need to get going with the Splunk Enterprise SDK for Python.
 
   The Splunk Enterprise SDK for Python has been tested with Python v2.7 and v3.7.
 
-* Splunk Enterprise
+* Splunk Enterprise 9.0 or 8.2
+
+    The Splunk Enterprise SDK for Python has been tested with Splunk Enterprise 9.0 and 8.2
 
   If you haven't already installed Splunk Enterprise, download it [here](http://www.splunk.com/download). 
   For more information, see the Splunk Enterprise [_Installation Manual_](https://docs.splunk.com/Documentation/Splunk/latest/Installation).

tests/README.md

@@ -1,7 +1,7 @@
 # Splunk Test Suite
 
 The test suite uses Python's standard library and the built-in **unittest** 
-library. If you're using Python 2.7, you're all set. However, if you are using 
+library. If you're using Python 2.7 or Python 3.7, you're all set. However, if you are using 
 Python 2.6, you'll also need to install the **unittest2** library to get the 
 additional features that were added to Python 2.7 (just run `pip install 
 unittest2` or `easy_install unittest2`).