message: More instructions for NengoPlugin
diff: @@ -114,5 +114,7 @@ of the repository.
  The [NengoPlugin](https://github.com/simondlevy/MulticopterSim/tree/NengoPlugin) branch supports flying with a combination
  of Hackflight for general flight control and an altitude-hold PID controller
  using the [Nengo](https://www.nengo.ai/) neural simulation package. To use this plugin, you should first install Nengo.
  -Then install the plugin in a folder called <b>SimPlugin</b> in the <b>MulticopterSim/Source</b> folder. The altitude-hold
  -will kick in when you move the auxiliary switch to its third position.
  +Then install the plugin in a folder called <b>SimPlugin</b> in the <b>MulticopterSim/Source</b> folder. Finally, in the
  +<b>MulticopterSim/Source/SimPlugin/python</b> folder, run <tt>python3 setup.py
  +install</tt>. The altitude-hold will kick in when you move the auxiliary
  +switch to its third position.
  