Update README.md

[tranvansang]

fix #1173

[jsf-clabot]

All committers have signed the CLA.

[codecov]

Codecov Report

Merging #1174 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1174   +/-   ##
=======================================
  Coverage   98.78%   98.78%           
=======================================
  Files          10       10           
  Lines         656      656           
  Branches      210      210           
=======================================
  Hits          648      648           
  Misses          8        8           

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[alexander-akait]

Thanks!