message: Removed deprecation warning in README
diff: <a href="https://www.youtube.com/watch?v=mobemDcX9ew"><img src="Extras/media/IndoorScene.png" width=500></a>
  -<h2>Note: I am no longer maintaining this repository, having switched my simulation work
  - to <a href="https://github.com/simondlevy/Hackflight/tree/master/unreal/">HackflightSim</a>.
  -</h2>
  -
  # About
  MulticopterSim is a simple multicopter flight simulator using Unreal Engine 4. It runs on Windows.
  