Move '}' for js code markdown.

[kaekasui]

It's fine, but I want to fix it.

before the change:

 <DatePicker selected={this.state.date}
  onSelect={this.handleSelect //when day is clicked}
  onChange={this.handleChange //only when value has changed}
 />

after the change:

 <DatePicker selected={this.state.date}
  onSelect={this.handleSelect} //when day is clicked
  onChange={this.handleChange} //only when value has changed
 />

[codecov]

Codecov Report

Merging #1405 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1405   +/-   ##
=======================================
  Coverage   89.43%   89.43%           
=======================================
  Files          16       16           
  Lines        1070     1070           
  Branches      173      173           
=======================================
  Hits          957      957           
  Misses         20       20           
  Partials       93       93

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[kaekasui]

thanks! I'll delete this branch.