improve text

Author: wernerfb

doc/users/whats_new/updated_backend_wx.rst

@@ -3,10 +3,11 @@ wx backend has been updated
 The wx backend can now be used with both wxPython classic and
 `Phoenix <http://wxpython.org/Phoenix/docs/html/main.html>`__.
 
-wxPython classic has to be at least version 2.8.12 and works on Python 2.x,
-wxPython Phoenix needs a current snapshot and works on Python 2.7 and 3.4+.
+wxPython classic has to be at least version 2.8.12 and works on Python 2.x. As
+of May 2015 no official release of wxPython Phoenix is available but a 
+current snapshot will work on Python 2.7+ and 3.4+.
 
 If you have multiple versions of wxPython installed, then the user code is
-responsible to set the wxPython version you want to use.  How to do this is
-explained in the comment at the beginning of example the 
+responsible setting the wxPython version.  How to do this is
+explained in the comment at the beginning of the example 
 `examples\user_interfaces\embedding_in_wx2.py`.