Update README.md

Author: Devansh-Maurya

README.md

@@ -3,7 +3,7 @@
 ## [Download the app](https://github.com/Devansh-Maurya/Bulb-Control-By-Arduino-and-Mobile/raw/master/Bluetooth%20Bulb%20Control.apk)
 ## [Arduino Code](/bluetooth/bluetooth.ino)
 
-### Implementing a system where we can automatically switch on or off any two appliances through a mobile device using necessary Arduino Uno and Bluetooth module.
+### Implementing a system where we can automatically switch on or off any two appliances through a mobile device using Arduino Uno and Bluetooth module.
 
 ### COMPONENTS REQUIRED:
 1. Arduino Uno