Add pre-commit hook

[qqaatw]

1. Add pre-commit with black hook.
2. Remove the installation instruction for musllinux in the readme.

[codecov]

Codecov Report

Patch coverage: 89.93% and no project coverage change.

Comparison is base (c7acef0) 92.28% compared to head (ceae5ab) 92.28%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #11   +/-   ##
=======================================
  Coverage   92.28%   92.28%           
=======================================
  Files           8        8           
  Lines         804      804           
=======================================
  Hits          742      742           
  Misses         62       62           

Files Changed	Coverage Δ
JciHitachi/status.py	100.00% <ø> (ø)
JciHitachi/utility.py	100.00% <ø> (ø)
JciHitachi/aws_connection.py	88.39% <85.93%> (ø)
JciHitachi/api.py	96.23% <92.06%> (ø)
JciHitachi/model.py	96.70% <93.75%> (ø)
JciHitachi/__init__.py	100.00% <100.00%> (ø)
JciHitachi/connection.py	100.00% <100.00%> (ø)
JciHitachi/mqtt_connection.py	100.00% <100.00%> (ø)

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