Update Benutzerhandbuch.md: Aktualisiere Angaben zu jwinf.de/db_status, Formatierung

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00:04:35

 
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test Test

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warning: build failed, waiting for other jobs to finish...
error: aborting due to 11 previous errors

error: build failed
make: *** [Makefile:23: clippy] Error 101
Cleaning up file based variables
ERROR: Job failed: exit code 1