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README.md

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 # Witty-Pi
-Witty Pi is small extension board that can add realtime clock and power management to your Raspberry Pi. After installing Witty Pi on your Raspberry Pi, you get some amazing new features:
+Witty Pi is small extension board that can add realtime clock and power management to your Raspberry Pi. After installing Witty Pi on your Raspberry Pi, you get these amazing new features:
 * You can properly turn on/off Raspberry Pi with single tap on the switch.
 * Raspberry Pi and all its USB peripherals get fully power cut after shutdown.
 * Raspberry Pi knows the correct time, even without accessing the Internet.
 * You can schedule the startup/shutdown of your Raspberry Pi.
 * You can even write a script to define complex ON/OFF sequence.
 
-Witty Pi supports Raspberry Pi model A+, B+ and Raspberry 2.
+Witty Pi supports Raspberry Pi model A+, B+, 2B, 3B and Zero.