feature(storybook): storybook added

[40818419]

Fixes #21

[codecov]

Codecov Report

Merging #50 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #50   +/-   ##
=======================================
  Coverage   95.52%   95.52%           
=======================================
  Files           2        2           
  Lines         134      134           
  Branches       36       36           
=======================================
  Hits          128      128           
  Misses          6        6

Impacted Files	Coverage Δ
src/ReactCodeInput.js	95.38% <ø> (ø)	⬆️

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