Add test & notebook status badges to GitHub

Author: rpep

README.md

@@ -8,6 +8,11 @@
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.167858.svg)](https://doi.org/10.5281/zenodo.167858)
 [![Website](https://img.shields.io/website-up-down-green-red/http/shields.io.svg?label=Fidimag-Website)](http://computationalmodelling.github.io/fidimag/)
 
+| Tests Type | Status |
+|:-:|:-:|
+| Tests | ![Tests](https://travis-matrix-badges.herokuapp.com/repos/computationalmodelling/fidimag/branches/master/1)
+| Notebooks | ![Notebooks](https://travis-matrix-badges.herokuapp.com/repos/computationalmodelling/fidimag/branches/master/2)
+
 <img src="http://computationalmodelling.github.io/fidimag/figs/skyrmion.jpg" alt="Fidimag Image" width="400" align="right">
 
 Fidimag solves finite-difference micromagnetic problems and supports atomistic simulations, using Python interface. The interface to both types of simulation is similar.