Several links broken in troubleshooting documentation

[unRARed]

Broken links in ./docs/troubleshooting.md

Audio device selection should be handled by the install script, which can be run...

The audio driver used is set by the audio.driver fluidsetting in your config file...

...patches must match the values set at the top of the headlesspi.py script...

...blink one of its LEDs in a repeating pattern.

If you think this is the case, consult the file format documentation...

And this one should probably link to this issues area on this Repo instead of fluidpatcher?

...feel free to ask for more help by posting an issue...

The document also describes testing sound with jackd, but at least on my Bullseye system, it's not there.

squishbox:~ $ /usr/bin/jackd
-bash: /usr/bin/jackd: No such file or directory