Update README.md

README.md

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 Jarjar is a python utility that makes it easy to send slack notifications to your teams. You can import it as a python module or use our command line tool.
 
-[![Documentation Status](https://readthedocs.org/projects/jarjar/badge/?version=v3.1)](https://jarjar.readthedocs.io/en/v3.1/) [![PyPI version](https://badge.fury.io/py/jarjar.svg)](https://badge.fury.io/py/jarjar)
+[![Documentation Status](https://readthedocs.org/projects/jarjar/badge/?version=latest)](https://jarjar.readthedocs.io/en/latest/) [![PyPI version](https://badge.fury.io/py/jarjar.svg)](https://badge.fury.io/py/jarjar)
 
 
 ## What can jarjar do for me?