add device specific faqs

docs/faq/device-tbeam.mdx

@@ -0,0 +1,15 @@
+---
+id: device
+title: FAQs - Device
+sidebar_label: Device
+---
+
+## Overview
+
+### How do I turn off an ESP32 t-beam based device?
+
+Hold down the left PWR button for about 10 seconds and the display should turn off.
+
+### How do I turn on an ESP32 t-beam based device?
+
+Push the left PWR button for about 1 second.

docs/faq/device-wisblock.mdx

@@ -0,0 +1,11 @@
+---
+id: device-wisblock
+title: FAQs - WisBlock Device
+sidebar_label: RAK WisBlock Devices
+---
+
+## Overview
+
+### Why does only one RAK Meshtastic Starter kit show up in my node list?
+
+There was a bug where Meshtastic Starter kits were sent out with the same MAC address. With a single MAC address the devices all report as being the same device. Without the battery connected, flash the starter kit device(s) to 1.2.59 and then do a factory reset, disconnect and reconnect the board and run `meshtastic --info`.

sidebars.js

@@ -27,7 +27,13 @@ module.exports = {
               "faq/client-web",
             ],
           },
-          "faq/device",
+          {
+            Devices: [
+              "faq/device",
+              "faq/device-tbeam",
+              "faq/device-wisblock",
+            ]
+          },
           {
             "Flashing Firmware": ["faq/m-flasher"],
           },