duncan/badges (man-group#960)

add python version badges tidy RERADME.md

Author: dunckerr

README.md

@@ -3,7 +3,8 @@
 
 [![Documentation Status](https://readthedocs.org/projects/arctic/badge/?version=latest)](https://arctic.readthedocs.io/en/latest/?badge=latest)
 [![CircleCI](https://circleci.com/gh/man-group/arctic/tree/master.svg?style=shield)](https://app.circleci.com/pipelines/github/man-group/arctic?branch=master)
-[![PyPI](https://img.shields.io/pypi/v/arctic)](https://pypi.org/project/arctic/)
+[![PyPI](https://img.shields.io/pypi/v/arctic)](https://pypi.org/project/arctic)
+[![Python](https://img.shields.io/badge/Python-3.6|3.7-green.svg)](https://github.com/man-group/arctic)
 [![Join the chat at https://gitter.im/man-group/arctic](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/man-group/arctic?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
 Arctic is a high performance datastore for numeric data. It supports [Pandas](http://pandas.pydata.org/),
@@ -16,14 +17,12 @@ Arctic can query millions of rows per second per client, achieves ~10x compressi
 
 Arctic has been under active development at [Man Group](https://www.man.com/) since 2012.
 
- * Stable Version 1.79.3
- * Beta Version 1.80.4
-
 ---
 
+
 :loudspeaker::loudspeaker::loudspeaker: **BUILDING THE NEXT GENERATION OF ARCTIC** :loudspeaker::loudspeaker::loudspeaker:
 
-Man Group is currently building the next generation of Arctic.
+## Man Group is currently building the next generation of Arctic.
 
 This will offer the same intuitive Python-centric API whilst utilizing a custom C++ storage engine and modern S3 compatible object storage to provide a timeseries database that is:
 
@@ -143,9 +142,9 @@ Arctic storage implementations are **pluggable**. VersionStore is the default.
 Arctic currently works with:
 
  * Python 3.6, 3.7
- * pymongo 3.6.0 thru 3.11.0
- * Pandas 0.22.0 thru 1.0.3
- * MongoDB >= 2.4.x
+ * pymongo >= 3.6.0  <= 3.11.0
+ * Pandas  >= 0.22.0 <= 1.0.3
+ * MongoDB >= 2.4.x <= 4.2.8
 
 
 Operating Systems: