README.md in nyaplot-0.1.1 vs README.md in nyaplot-0.1.2

- old
+ new

@@ -9,9 +9,10 @@
 
 **Attention: Nyaplot works with IRuby v0.1.13 or up. If you had installed IRuby before, please update it.**
 
 ## Demo
 
++ [Movie demo on YouTube](https://www.youtube.com/watch?v=ZxjqsIluM88)
 + [Nyaplot Tutorial & Case study](http://nbviewer.ipython.org/github/domitry/nyaplot/blob/master/examples/notebook/Index.ipynb)
 
 Visit [nyaplot-notebooks on GitHub](https://github.com/domitry/nyaplot-notebooks) to see more example.
 
 ## Documents