Update gpio.md

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Maxim Devaev 2020-09-20 04:08:35 +03:00 committed by GitHub
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@ -163,4 +163,4 @@ Additionally, we recommend to configure access rights and static device name usi
SUBSYSTEM=="usb", ATTR{idVendor}=="16c0", ATTR{idProduct}=="05df", MODE="666"
```
Channels should not use duplicate physical numbers.
Channels should not use duplicate physical numbers. The driver supports saving state between KVMD restarts (meaning `initial=null`).