Document using Android phone as roaming Authenticator

[spwitt]

An Android phone can be connected via Bluetooth and used as a WebAuthn authenticator, but there may be some extra setup required depending on the user's preferred browser and operating system.

Document the requirements and steps to enable an Android phone as a WebAuthn authenticator.

• Android 7+
• Connect via Bluetooth
• Chrome browser (maybe all Chromium browsers?)
• Allow browser to use Bluetooth in System Preferences > Security and Privacy (macOS)
• Sign in to same Google account on phone and primary machine or scan QR code to link

[robotdan]

This is really just part of https://github.com/FusionAuth/fusionauth-issues/issues/77 correct?

[spwitt]

@mooreds asked me to create an issue to document using and Android phone as a roaming authenticator. I'm fine with rolling it into #77 if you'd prefer.

[mooreds]

This feels different as it is a specific piece of documentation that may or may not be delivered with #77.

[robotdan]

I think based upon what @spwitt demo'd it is part of #77. We usually don't open up separate issues to document parts of a feature.

I don't care really if we want to open more issues if you think that is helpful, but this will be handled and or delivered as part of #77 along with all other documentation for this feature.

[mooreds]

Okay, if we know it is going to get wrapped into that issue, fine with closing.