Update README.md

README.md

@@ -16,6 +16,7 @@ Forum: [forum.flipperzero.one](https://forum.flipperzero.one/)
 * [Ibutton](https://github.com/Flipper-Zero/flipperzero-firmware-community/wiki/Ibutton)
 * [USB](https://github.com/Flipper-Zero/flipperzero-firmware-community/wiki/USB)
 * [Bluetooth](https://github.com/Flipper-Zero/flipperzero-firmware-community/wiki/Bluetooth)
+* [GPIO/Hw Modules](https://github.com/Flipper-Zero/flipperzero-firmware-community/wiki/GPIO)
 * [NFC](https://github.com/Flipper-Zero/flipperzero-firmware-community/wiki/NFC)
 * [U2F](https://github.com/Flipper-Zero/flipperzero-firmware-community/wiki/U2F)
 * [Tamagotchi](https://github.com/Flipper-Zero/flipperzero-firmware-community/wiki/Tamagotchi)