Sync wiki with FlightScnr_Pi 2026.8.21.2; add image placeholders.
updating assembly instructions
Fixing wiki link order so Assembly and other aliases resolve.
Sync wiki with FlightScnr_Pi main (2026.8.5.4).
Sync wiki with FlightScnr_Pi main (2026.8.3.4).
Sync wiki with FlightScnr_Pi main (2026.8.3.2).
reparing broken links
Split README into a multi-page wiki with sidebar navigation.