wrong link for pyqt4 example

doc/examples.rst

@@ -9,7 +9,7 @@ with different frameworks:
 
 - `A console application <https://github.com/takluyver/pynsist/tree/master/examples/console>`_
 - `A tkinter application <https://github.com/takluyver/pynsist/tree/master/examples/tkinter>`_
-- `A PyQt4 application <https://github.com/takluyver/pynsist/tree/master/examples/pyqt>`_
+- `A PyQt4 application <https://github.com/takluyver/pynsist/tree/master/examples/pyqt4>`_
 - `A PyGTK application <https://github.com/takluyver/pynsist/tree/master/examples/pygtk>`_
 - `A PyGTK application including Numpy and Matplotlib (32 bit, Python 2.7) <https://github.com/takluyver/pynsist/tree/master/examples/pygtk_mpl_numpy>`_
 - `A PyGI (or PyGObject) application including Numpy and Matplotlib (64 bit, Python 3.4) <https://github.com/takluyver/pynsist/tree/master/examples/pygi_mpl_numpy>`_