Remove unused import 'errors' from README example

[kumapower17]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.07%. Comparing base (0954d6e) to head (4000fc8).
⚠️ Report is 10 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2889      +/-   ##
==========================================
+ Coverage   93.02%   93.07%   +0.04%     
==========================================
  Files          43       43              
  Lines        4456     4459       +3     
==========================================
+ Hits         4145     4150       +5     
+ Misses        194      193       -1     
+ Partials      117      116       -1     

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