I’ll add this provided board photo as a stable project asset and update the README image section to use it.

Done — I added the provided board photo as a project asset and updated the README to reference the stable local asset path.

I’ll clean up the Betaflight Firmware document formatting while preserving its content, then verify the result.

Done — I cleaned up the Betaflight Firmware page with proper Markdown headings, bullet lists, numbered setup steps, a fenced CLI code block, and a safety/bring-up checklist.