Add parrot link

Author: lord

README.md

@@ -95,6 +95,7 @@ Companies Using Slate
 * [Dwolla](https://docs.dwolla.com/)
 * [Clearbit](https://clearbit.com/docs)
 * [Coinbase](https://developers.coinbase.com/api)
+* [Parrot Drones](http://developer.parrot.com/docs/bebop/)
 * [Fidor Bank](http://docs.fidor.de/)
 
 You can view more in [the list on the wiki](https://github.com/tripit/slate/wiki/Slate-in-the-Wild).