Fix readme
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@ -77,7 +77,7 @@ If you're short on GPIOs, there is a way to use a single GPIO for multiple butto
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[https://www.instructables.com/RaspberryPi-Multiple-Buttons-On-One-Digital-Pin/](https://www.instructables.com/RaspberryPi-Multiple-Buttons-On-One-Digital-Pin/)
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#### Potentiometer circuit
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#### Rotary encoder circuit
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Using [https://github.com/Tr3m/rpi-rotary-encoder](https://github.com/Tr3m/rpi-rotary-encoder), we can use a 3-pins rotary encoder to control volume.
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