Update current version in docs introduction

doc/introduction.txt

@@ -12,7 +12,7 @@ Even if you don't wish to run simulations on multiple simulators, you may benefi
 
 It is straightforward to port an existing model from a Python-supporting simulator to PyNN, since this can be done incrementally, replacing one piece of simulator-specific code at a time with the PyNN equivalent, and testing that the model behaviour is unchanged at each step.
 
-:doc:`Download<download>` the current stable release of the library (0.8.1) or get the development version from the `Git repository`_ .
+:doc:`Download<download>` the current stable release of the library (0.9.6) or get the development version from the `Git repository`_ .
 
 Licence
 -------
@@ -44,4 +44,4 @@ If you have questions or comments about PyNN, please post a message on the `Neur
 .. _`Git repository`: https://github.com/NeuralEnsemble/PyNN
 .. _`PyNN issue tracker`: https://github.com/NeuralEnsemble/PyNN/issues
 .. _`NeuralEnsemble Google group`: http://groups.google.com/group/neuralensemble
-.. _`Djurfeldt, 2012`: http://dx.doi.org/10.1007/s12021-012-9146-1
+.. _`Djurfeldt, 2012`: http://dx.doi.org/10.1007/s12021-012-9146-1