Update README for latest release

[kingthorin]

No description provided.

[what-the-diff]

• 8.0 -> 1.8.1

[codecov-commenter]

Codecov Report

Merging #732 (ba5e312) into main (4b99fc1) will decrease coverage by 0.02%.
The diff coverage is n/a.

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@@             Coverage Diff              @@
##               main     #732      +/-   ##
============================================
- Coverage     92.92%   92.90%   -0.02%     
  Complexity     2585     2585              
============================================
  Files           281      281              
  Lines          5114     5114              
  Branches        528      528              
============================================
- Hits           4752     4751       -1     
- Misses          234      235       +1     
  Partials        128      128              

see 1 file with indirect coverage changes

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[bodiam]

Thanks!