Update README (fix #222)

[laughingman7743]

No description provided.

[codecov]

Codecov Report

Merging #223 (68789e5) into master (43954c2) will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #223      +/-   ##
==========================================
+ Coverage   90.55%   90.61%   +0.05%     
==========================================
  Files          16       16              
  Lines        1736     1736              
==========================================
+ Hits         1572     1573       +1     
+ Misses        164      163       -1     

Impacted Files	Coverage Δ
pyathena/common.py	88.33% <0.00%> (+0.55%)	⬆️

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