Merge pull request #22 from marklogic/feature/docs-tweak

Added Python version to docs and link to PyPI

Author: rjrudin

docs/index.md

@@ -10,10 +10,14 @@ MarkLogic Python Client further simplifies usage of the `requests` library by su
 strategies with MarkLogic and improving the user experience with some of the more common endpoints in the MarkLogic
 REST API.
 
-The client is easily [installed via pip](https://packaging.python.org/en/latest/guides/tool-recommendations/):
+The client requires Python 3.9 or higher. It is [available at PyPI](https://pypi.org/project/marklogic-python-client/)
+and can be [installed via pip](https://packaging.python.org/en/latest/guides/tool-recommendations/):
 
     pip install marklogic-python-client
 
+The client's sole dependency with MarkLogic is on the MarkLogic REST API. MarkLogic 10 and higher is supported, and 
+earlier versions of MarkLogic that support the MarkLogic REST API are likely to work as well though are not tested.
+
 An instance of the client can be used in the exact same way as the `requests` API:
 
 ```