Merge pull request #95 from westurner/patch-2

Update README.rst: github.com -> github.io

README.rst

@@ -9,7 +9,7 @@ Python.
 These documents are written with the rest markup language (``.rst``
 extension) and built using Sphinx: http://sphinx.pocoo.org/.
 
-You can view the online version at: http://scipy-lectures.github.com
+You can view the online version at: http://scipy-lectures.github.io
 
 Reusing and distributing
 -------------------------