Build extra wheels

[asvetlov]

No description provided.

[codecov]

Codecov Report

Merging #227 (551af1f) into master (d354171) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #227   +/-   ##
=======================================
  Coverage   98.36%   98.36%           
=======================================
  Files           1        1           
  Lines          61       61           
  Branches        7        7           
=======================================
  Hits           60       60           
  Misses          1        1           

Flag	Coverage Δ
unit	96.72% <100.00%> (ø)

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Impacted Files	Coverage Δ
frozenlist/__init__.py	98.36% <100.00%> (ø)

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[webknjaz]

LGTM except for those two minor suggestions.