* Update: RPi documentation
* Update miPayload.h
* Update README.md
* MI - remarks to user manual
* MI - getting started
* MI - user manual typos
* MI - fix AC calc
* MI - fix status msg. analysis
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Co-authored-by: DM6JM <micheleblank@gmx.com>
Co-authored-by: Lukas Pusch <lp@lufami.de>