message: Added Nengo instructions
diff: @@ -117,4 +117,11 @@ variable is set appropriately in <b>HackflightSimBuild.cs</b>.
  <b>C:\Windows\System32</b> folder. If it is not, you can copy it to there from the folder you specified in the
  <tt>Pythonpath</tt> variable.
  +4. To see a demonstration of Python in action, un-comment the
  +<a href="https://github.com/simondlevy/HackflightSim/blob/master/Source/HackflightSim/python/python_class.h#L9"><tt>#define _PYTHON</tt></a>
  +directive in <b>python/python_class.h</b>. This will enable you to use the [Nengo neural simulator](https://www.nengo.ai/) to control the altitude of the
  +vehicle in loiter mode. So you should first install Nengo (<tt>pip3 install nengo</tt>) before running this example.
  +
  +
  +
  