update Canada to use USA frequency
add guide to add nodes to map
add guide to do OTA firmware update for nRF devices
update donation links
general text cleanup
Add:
- definitions for BW, SF, CR
- Liam's meshcore web client and meshcore js
- what is 'import form clipboard' feature on t-deck
Update:
- Repeater and room server explanations
- phone client apps now support repeater and room server management over RF
