Adding documentation badge to README.md

Author: Dan Saunders

README.md

@@ -4,9 +4,10 @@ A Python package used for simulating spiking neural networks (SNNs) using [PyTor
 
 BindsNET is a spiking neural network simulation software, a critical component enabling the modeling of neural systems and the development of biologically inspired algorithms in the machine learning domain.
 
-This package is used as part of ongoing research on applying SNNs to machine learning (ML) and reinforcement learning (RL) problems in the [Biologically Inspired Neural & Dynamical Systems (BINDS) lab](http://binds.cs.umass.edu/). 
+This package is used as part of ongoing research on applying SNNs to machine learning (ML) and reinforcement learning (RL) problems in the [Biologically Inspired Neural & Dynamical Systems (BINDS) lab](http://binds.cs.umass.edu/).
 
 [![Build Status](https://travis-ci.com/Hananel-Hazan/bindsnet.svg?token=trym5Uzx1rs9Ez2yENEF&branch=master)](https://travis-ci.com/Hananel-Hazan/bindsnet)
+[![Documentation Status](https://readthedocs.org/projects/bindsnet-docs/badge/?version=latest)](https://bindsnet-docs.readthedocs.io/?badge=latest)
 
 ## Requirements