Add a Github Pages with better usage instructions / walkthrough examples

[ghost]

• For wallet software to best read QR codes, hold the device 4-6 inches away from camera, tilt up or down slightly to reduce glare, and slowly move away and toward the camera.
• To best read QR codes via the device's camera, hold the device just far enough away that the QR code takes up the entirety of the screen. If the code looks blurry and missing detail, the camera lens of the device can be focused by rotating it (with your fingertip) clockwise and counter-clockwise to achieve a clearer result. You should only have to do this the first time you use it.
• You can now read in a receive address to verify that it's owned by the multsig to double-check that your desktop wallet software isn't lying to you

[ghost]

Would be awesome if someone good at making youtube videos could make walkthrough videos of:

• Downloading the repo, building the firmware, flashing firm/software to the device, and booting it up
• Generating a key offline, loading it into the device, printing off a QR code backup, and displaying the xpub
• Making a multisig with the device as a cosigner, importing the muiltisig policy, and signing a PSBT to send funds out of the multisig

[ghost]

Add a note that you can switch between networks (mainnet, testnet, etc.) in the About screen

Add note that you can customize various settings such as printer baudrate, splash screen, and default network by adding txt files under the settings folder. For example, printer.baudrate.txt with contents 19200 changes the default baudrate from 9600 to 19200 splash.txt with custom text to display on startup instead of the Krux logo network.txt with test changes the default network on startup to testnet instead of mainnet