[HOTFIX][DOC] Redirect ReadTheDocs link to "latest" (last commit on m…

…aster) instead of "stable" (last release version tagged)

README.md

@@ -2,7 +2,7 @@
 
 [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/neuropoly/axondeepseg/master?filepath=notebooks%2Fgetting_started.ipynb)
 [![Build Status](https://api.travis-ci.org/neuropoly/axondeepseg.svg?branch=master)](https://travis-ci.org/neuropoly/axondeepseg)
-[![Documentation Status](https://readthedocs.org/projects/axondeepseg/badge/?version=stable)](http://axondeepseg.readthedocs.io/en/stable/?badge=stable)
+[![Documentation Status](https://readthedocs.org/projects/axondeepseg/badge/?version=stable)](http://axondeepseg.readthedocs.io/en/latest/?badge=latest)
 [![Coverage Status](https://coveralls.io/repos/github/neuropoly/axondeepseg/badge.svg?branch=master)](https://coveralls.io/github/neuropoly/axondeepseg?branch=master)
 
 Segment axon and myelin from microscopy data using deep learning. Written in Python. Using the TensorFlow framework.