Better README

Author: damiafuentes

README.md

@@ -3,8 +3,11 @@ DJI Tello drone python interface using the official [Tello SDK](https://dl-cdn.r
 Yes, this library has been tested with the drone. 
 Please see [example.py](https://github.com/damiafuentes/TelloSDKPy/blob/master/example.py) for a working example controlling the drone as a remote controller with the keyboard and the video stream in a window.  
 
+Compatible with python 2.7 and 3.6.
+
 ## Prerequisites
 
+
 ```
 $ git clone https://github.com/damiafuentes/TelloSDKPy.git
 $ cd TelloSDKPy