Merge pull request #32 from danielballan/binder-badge

Add binder badge.

Author: nkeim

README.md

@@ -1,13 +1,16 @@
 trackpy-examples
 ================
 
+[![Binder](http://mybinder.org/badge.svg)](http://mybinder.org/repo/soft-matter/trackpy-examples)
+
 This is a trove of **sample data, tutorials, examples, and speed tests** for the
 [trackpy particle-tracking toolkit](https://github.com/soft-matter/trackpy).
 See trackpy proper for installation instructions and more information about
-the project, including full documentation. Here, you can [browse the example IPython
-notebooks](http://nbviewer.ipython.org/github/soft-matter/trackpy-examples/tree/master/notebooks/),
-or, once you've installed `trackpy`, download the entire repository and take
-them for a spin.
+the project, including full documentation. Here, you can [browse the example Jupyter
+notebooks](http://nbviewer.jupyter.org/github/soft-matter/trackpy-examples/tree/master/notebooks/),
+[try out the notebooks *live*](http://mybinder.org/repo/soft-matter/trackpy-examples) 
+with the [Binder](http://mybinder.org/) service, or, once you've installed `trackpy`, 
+download the entire repository and explore.
 
 This repository is kept separate from the `trackpy` code because image and
 video data are large. Its goal is to collect instructive notebooks and data