Tech docs

[microbit-matt-hillsdon]

Somewhat lazily, I've tried to cover in one doc:

• a tech overview
• what it might make sense to extract or reuse elsewhere

[microbit-robert]

We use different links for support, https://support.microbit.org/ in the readme and mailto:help@microbit.org in the tech-overview. Not sure if this is by design.

Should we add a section on search and language support for search?

[microbit-matt-hillsdon]

We use different links for support, https://support.microbit.org/ in the readme and mailto:help@microbit.org in the tech-overview. Not sure if this is by design.

Yeah, kinda, based on the readme likely having a more general audience. Not a very strong view though.

Should we add a section on search and language support for search?

Makes sense, yep.