add a example.

EXAMPLES

@@ -50,6 +50,7 @@ Documentation using the default theme
 * PyMQI: http://packages.python.org/pymqi/
 * PyPubSub: http://pubsub.sourceforge.net/
 * pyrticle: http://documen.tician.de/pyrticle/
+* pySPACE: http://pyspace.github.io/pyspace/
 * Python: http://docs.python.org/
 * python-apt: http://apt.alioth.debian.org/python-apt-doc/
 * PyUblas: http://documen.tician.de/pyublas/