docs: update slack community link

[timliubentoml]

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[codecov]

Codecov Report

Merging #92 (31d72f0) into main (0861c46) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #92   +/-   ##
=======================================
  Coverage   64.31%   64.31%           
=======================================
  Files          15       15           
  Lines         765      765           
=======================================
  Hits          492      492           
  Misses        273      273           

Flag	Coverage Δ
unit-tests	64.31% <ø> (ø)

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